251309520

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1511}}^1$

素因数の和:1551

約数の個数: 320

約数和(自身を含む): 1079930880

約数和(自身を除く): 828621360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 27, 28, 30, 33, 35, 36, 40, 42, 44, 45, 48, 54, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 88, 90, 99, 105, 108, 110, 112, 120, 126, 132, 135, 140, 144, 154, 165, 168, 176, 180, 189, 198, 210, 216, 220, 231, 240, 252, 264, 270, 280, 297, 308, 315, 330, 336, 360, 378, 385, 396, 420, 432, 440, 462, 495, 504, 528, 540, 560, 594, 616, 630, 660, 693, 720, 756, 770, 792, 840, 880, 924, 945, 990, 1008, 1080, 1155, 1188, 1232, 1260, 1320, 1386, 1485, 1511, 1512, 1540, 1584, 1680, 1848, 1890, 1980, 2079, 2160, 2310, 2376, 2520, 2640, 2772, 2970, 3022, 3024, 3080, 3465, 3696, 3780, 3960, 4158, 4533, 4620, 4752, 5040, 5544, 5940, 6044, 6160, 6930, 7555, 7560, 7920, 8316, 9066, 9240, 10395, 10577, 11088, 11880, 12088, 13599, 13860, 15110, 15120, 16621, 16632, 18132, 18480, 20790, 21154, 22665, 23760, 24176, 27198, 27720, 30220, 31731, 33242, 33264, 36264, 40797, 41580, 42308, 45330, 49863, 52885, 54396, 55440, 60440, 63462, 66484, 67995, 72528, 81594, 83105, 83160, 84616, 90660, 95193, 99726, 105770, 108792, 116347, 120880, 126924, 132968, 135990, 149589, 158655, 163188, 166210, 166320, 169232, 181320, 190386, 199452, 203985, 211540, 217584, 232694, 249315, 253848, 265936, 271980, 285579, 299178, 317310, 326376, 332420, 349041, 362640, 380772, 398904, 407970, 423080, 448767, 465388, 475965, 498630, 507696, 543960, 571158, 581735, 598356, 634620, 652752, 664840, 698082, 747945, 761544, 797808, 815940, 846160, 897534, 930776, 951930, 997260, 1047123, 1087920, 1142316, 1163470, 1196712, 1269240, 1329680, 1396164, 1427895, 1495890, 1523088, 1631880, 1745205, 1795068, 1861552, 1903860, 1994520, 2094246, 2243835, 2284632, 2326940, 2393424, 2538480, 2792328, 2855790, 2991780, 3141369, 3263760, 3490410, 3590136, 3807720, 3989040, 4188492, 4487670, 4569264, 4653880, 5235615, 5584656, 5711580, 5983560, 6282738, 6980820, 7180272, 7615440, 8376984, 8975340, 9307760, 10471230, 11423160, 11967120, 12565476, 13961640, 15706845, 16753968, 17950680, 20942460, 22846320, 25130952, 27923280, 31413690, 35901360, 41884920, 50261904, 62827380, 83769840, 125654760, 251309520]

約数ペア:

[(1, 251309520), (2, 125654760), (3, 83769840), (4, 62827380), (5, 50261904), (6, 41884920), (7, 35901360), (8, 31413690), (9, 27923280), (10, 25130952), (11, 22846320), (12, 20942460), (14, 17950680), (15, 16753968), (16, 15706845), (18, 13961640), (20, 12565476), (21, 11967120), (22, 11423160), (24, 10471230), (27, 9307760), (28, 8975340), (30, 8376984), (33, 7615440), (35, 7180272), (36, 6980820), (40, 6282738), (42, 5983560), (44, 5711580), (45, 5584656), (48, 5235615), (54, 4653880), (55, 4569264), (56, 4487670), (60, 4188492), (63, 3989040), (66, 3807720), (70, 3590136), (72, 3490410), (77, 3263760), (80, 3141369), (84, 2991780), (88, 2855790), (90, 2792328), (99, 2538480), (105, 2393424), (108, 2326940), (110, 2284632), (112, 2243835), (120, 2094246), (126, 1994520), (132, 1903860), (135, 1861552), (140, 1795068), (144, 1745205), (154, 1631880), (165, 1523088), (168, 1495890), (176, 1427895), (180, 1396164), (189, 1329680), (198, 1269240), (210, 1196712), (216, 1163470), (220, 1142316), (231, 1087920), (240, 1047123), (252, 997260), (264, 951930), (270, 930776), (280, 897534), (297, 846160), (308, 815940), (315, 797808), (330, 761544), (336, 747945), (360, 698082), (378, 664840), (385, 652752), (396, 634620), (420, 598356), (432, 581735), (440, 571158), (462, 543960), (495, 507696), (504, 498630), (528, 475965), (540, 465388), (560, 448767), (594, 423080), (616, 407970), (630, 398904), (660, 380772), (693, 362640), (720, 349041), (756, 332420), (770, 326376), (792, 317310), (840, 299178), (880, 285579), (924, 271980), (945, 265936), (990, 253848), (1008, 249315), (1080, 232694), (1155, 217584), (1188, 211540), (1232, 203985), (1260, 199452), (1320, 190386), (1386, 181320), (1485, 169232), (1511, 166320), (1512, 166210), (1540, 163188), (1584, 158655), (1680, 149589), (1848, 135990), (1890, 132968), (1980, 126924), (2079, 120880), (2160, 116347), (2310, 108792), (2376, 105770), (2520, 99726), (2640, 95193), (2772, 90660), (2970, 84616), (3022, 83160), (3024, 83105), (3080, 81594), (3465, 72528), (3696, 67995), (3780, 66484), (3960, 63462), (4158, 60440), (4533, 55440), (4620, 54396), (4752, 52885), (5040, 49863), (5544, 45330), (5940, 42308), (6044, 41580), (6160, 40797), (6930, 36264), (7555, 33264), (7560, 33242), (7920, 31731), (8316, 30220), (9066, 27720), (9240, 27198), (10395, 24176), (10577, 23760), (11088, 22665), (11880, 21154), (12088, 20790), (13599, 18480), (13860, 18132), (15110, 16632), (15120, 16621)]