About the Number

2801236880

2801236879 ← → 2801236881

2進数表記:10100110111101110111101110010000

漢数字表記:二十八億百二十三万六千八百八十

素因数分解:

2 4 × 5 1 × 13 1 × 17 1 × 19 1 × 31 1 × 269 1

素因数の和:362
約数の個数: 320
約数和(自身を含む): 8099481600
約数和(自身を除く): 5298244720

約数列:
[1, 2, 4, 5, 8, 10, 13, 16, 17, 19, 20, 26, 31, 34, 38, 40, 52, 62, 65, 68, 76, 80, 85, 95, 104, 124, 130, 136, 152, 155, 170, 190, 208, 221, 247, 248, 260, 269, 272, 304, 310, 323, 340, 380, 403, 442, 494, 496, 520, 527, 538, 589, 620, 646, 680, 760, 806, 884, 988, 1040, 1054, 1076, 1105, 1178, 1235, 1240, 1292, 1345, 1360, 1520, 1612, 1615, 1768, 1976, 2015, 2108, 2152, 2210, 2356, 2470, 2480, 2584, 2635, 2690, 2945, 3224, 3230, 3497, 3536, 3952, 4030, 4199, 4216, 4304, 4420, 4573, 4712, 4940, 5111, 5168, 5270, 5380, 5890, 6448, 6460, 6851, 6994, 7657, 8060, 8339, 8398, 8432, 8840, 9146, 9424, 9880, 10013, 10222, 10540, 10760, 11780, 12920, 13702, 13988, 15314, 16120, 16678, 16796, 17485, 17680, 18292, 19760, 20026, 20444, 20995, 21080, 21520, 22865, 23560, 25555, 25840, 27404, 27976, 30628, 32240, 33356, 33592, 34255, 34970, 36584, 38285, 40052, 40888, 41695, 41990, 42160, 45730, 47120, 50065, 51110, 54808, 55952, 59449, 61256, 66443, 66712, 67184, 68510, 69940, 73168, 76570, 80104, 81776, 83390, 83980, 86887, 91460, 100130, 102220, 108407, 109616, 118898, 122512, 130169, 132886, 133424, 137020, 139880, 141763, 153140, 158441, 160208, 166780, 167960, 173774, 182920, 200260, 204440, 216814, 237796, 260338, 265772, 274040, 279760, 283526, 297245, 306280, 316882, 332215, 333560, 335920, 347548, 365840, 400520, 408880, 433628, 434435, 475592, 520676, 531544, 542035, 548080, 567052, 594490, 612560, 633764, 650845, 664430, 667120, 695096, 708815, 792205, 801040, 867256, 868870, 951184, 1041352, 1063088, 1084070, 1129531, 1134104, 1188980, 1267528, 1301690, 1328860, 1390192, 1417630, 1584410, 1734512, 1737740, 1842919, 2059733, 2082704, 2168140, 2259062, 2268208, 2377960, 2535056, 2603380, 2657720, 2693497, 2835260, 3168820, 3475480, 3685838, 4119466, 4336280, 4518124, 4755920, 5206760, 5315440, 5386994, 5647655, 5670520, 6337640, 6950960, 7371676, 8238932, 8672560, 9036248, 9214595, 10298665, 10413520, 10773988, 11295310, 11341040, 12675280, 13467485, 14743352, 16477864, 18072496, 18429190, 20597330, 21547976, 22590620, 26934970, 29486704, 32955728, 35015461, 36858380, 41194660, 43095952, 45181240, 53869940, 70030922, 73716760, 82389320, 90362480, 107739880, 140061844, 147433520, 164778640, 175077305, 215479760, 280123688, 350154610, 560247376, 700309220, 1400618440, 2801236880]

約数ペア:
[(1, 2801236880), (2, 1400618440), (4, 700309220), (5, 560247376), (8, 350154610), (10, 280123688), (13, 215479760), (16, 175077305), (17, 164778640), (19, 147433520), (20, 140061844), (26, 107739880), (31, 90362480), (34, 82389320), (38, 73716760), (40, 70030922), (52, 53869940), (62, 45181240), (65, 43095952), (68, 41194660), (76, 36858380), (80, 35015461), (85, 32955728), (95, 29486704), (104, 26934970), (124, 22590620), (130, 21547976), (136, 20597330), (152, 18429190), (155, 18072496), (170, 16477864), (190, 14743352), (208, 13467485), (221, 12675280), (247, 11341040), (248, 11295310), (260, 10773988), (269, 10413520), (272, 10298665), (304, 9214595), (310, 9036248), (323, 8672560), (340, 8238932), (380, 7371676), (403, 6950960), (442, 6337640), (494, 5670520), (496, 5647655), (520, 5386994), (527, 5315440), (538, 5206760), (589, 4755920), (620, 4518124), (646, 4336280), (680, 4119466), (760, 3685838), (806, 3475480), (884, 3168820), (988, 2835260), (1040, 2693497), (1054, 2657720), (1076, 2603380), (1105, 2535056), (1178, 2377960), (1235, 2268208), (1240, 2259062), (1292, 2168140), (1345, 2082704), (1360, 2059733), (1520, 1842919), (1612, 1737740), (1615, 1734512), (1768, 1584410), (1976, 1417630), (2015, 1390192), (2108, 1328860), (2152, 1301690), (2210, 1267528), (2356, 1188980), (2470, 1134104), (2480, 1129531), (2584, 1084070), (2635, 1063088), (2690, 1041352), (2945, 951184), (3224, 868870), (3230, 867256), (3497, 801040), (3536, 792205), (3952, 708815), (4030, 695096), (4199, 667120), (4216, 664430), (4304, 650845), (4420, 633764), (4573, 612560), (4712, 594490), (4940, 567052), (5111, 548080), (5168, 542035), (5270, 531544), (5380, 520676), (5890, 475592), (6448, 434435), (6460, 433628), (6851, 408880), (6994, 400520), (7657, 365840), (8060, 347548), (8339, 335920), (8398, 333560), (8432, 332215), (8840, 316882), (9146, 306280), (9424, 297245), (9880, 283526), (10013, 279760), (10222, 274040), (10540, 265772), (10760, 260338), (11780, 237796), (12920, 216814), (13702, 204440), (13988, 200260), (15314, 182920), (16120, 173774), (16678, 167960), (16796, 166780), (17485, 160208), (17680, 158441), (18292, 153140), (19760, 141763), (20026, 139880), (20444, 137020), (20995, 133424), (21080, 132886), (21520, 130169), (22865, 122512), (23560, 118898), (25555, 109616), (25840, 108407), (27404, 102220), (27976, 100130), (30628, 91460), (32240, 86887), (33356, 83980), (33592, 83390), (34255, 81776), (34970, 80104), (36584, 76570), (38285, 73168), (40052, 69940), (40888, 68510), (41695, 67184), (41990, 66712), (42160, 66443), (45730, 61256), (47120, 59449), (50065, 55952), (51110, 54808)]

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