247474240

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:181

約数の個数: 224

約数和(自身を含む): 696407040

約数和(自身を除く): 448932800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 31, 32, 38, 40, 52, 62, 64, 65, 76, 80, 95, 101, 104, 124, 130, 152, 155, 160, 190, 202, 208, 247, 248, 260, 304, 310, 320, 380, 403, 404, 416, 494, 496, 505, 520, 589, 608, 620, 760, 806, 808, 832, 988, 992, 1010, 1040, 1178, 1216, 1235, 1240, 1313, 1520, 1612, 1616, 1919, 1976, 1984, 2015, 2020, 2080, 2356, 2470, 2480, 2626, 2945, 3040, 3131, 3224, 3232, 3838, 3952, 4030, 4040, 4160, 4712, 4940, 4960, 5252, 5890, 6080, 6262, 6448, 6464, 6565, 7657, 7676, 7904, 8060, 8080, 9424, 9595, 9880, 9920, 10504, 11780, 12524, 12896, 13130, 15314, 15352, 15655, 15808, 16120, 16160, 18848, 19190, 19760, 21008, 23560, 24947, 25048, 25792, 26260, 30628, 30704, 31310, 32240, 32320, 37696, 38285, 38380, 39520, 40703, 42016, 47120, 49894, 50096, 52520, 59489, 61256, 61408, 62620, 64480, 76570, 76760, 79040, 81406, 84032, 94240, 99788, 100192, 105040, 118978, 122512, 122816, 124735, 125240, 128960, 153140, 153520, 162812, 188480, 199576, 200384, 203515, 210080, 237956, 245024, 249470, 250480, 297445, 306280, 307040, 325624, 399152, 407030, 420160, 475912, 490048, 498940, 500960, 594890, 612560, 614080, 651248, 773357, 798304, 814060, 951824, 997880, 1001920, 1189780, 1225120, 1302496, 1546714, 1596608, 1628120, 1903648, 1995760, 2379560, 2450240, 2604992, 3093428, 3256240, 3807296, 3866785, 3991520, 4759120, 6186856, 6512480, 7733570, 7983040, 9518240, 12373712, 13024960, 15467140, 19036480, 24747424, 30934280, 49494848, 61868560, 123737120, 247474240]

約数ペア:

[(1, 247474240), (2, 123737120), (4, 61868560), (5, 49494848), (8, 30934280), (10, 24747424), (13, 19036480), (16, 15467140), (19, 13024960), (20, 12373712), (26, 9518240), (31, 7983040), (32, 7733570), (38, 6512480), (40, 6186856), (52, 4759120), (62, 3991520), (64, 3866785), (65, 3807296), (76, 3256240), (80, 3093428), (95, 2604992), (101, 2450240), (104, 2379560), (124, 1995760), (130, 1903648), (152, 1628120), (155, 1596608), (160, 1546714), (190, 1302496), (202, 1225120), (208, 1189780), (247, 1001920), (248, 997880), (260, 951824), (304, 814060), (310, 798304), (320, 773357), (380, 651248), (403, 614080), (404, 612560), (416, 594890), (494, 500960), (496, 498940), (505, 490048), (520, 475912), (589, 420160), (608, 407030), (620, 399152), (760, 325624), (806, 307040), (808, 306280), (832, 297445), (988, 250480), (992, 249470), (1010, 245024), (1040, 237956), (1178, 210080), (1216, 203515), (1235, 200384), (1240, 199576), (1313, 188480), (1520, 162812), (1612, 153520), (1616, 153140), (1919, 128960), (1976, 125240), (1984, 124735), (2015, 122816), (2020, 122512), (2080, 118978), (2356, 105040), (2470, 100192), (2480, 99788), (2626, 94240), (2945, 84032), (3040, 81406), (3131, 79040), (3224, 76760), (3232, 76570), (3838, 64480), (3952, 62620), (4030, 61408), (4040, 61256), (4160, 59489), (4712, 52520), (4940, 50096), (4960, 49894), (5252, 47120), (5890, 42016), (6080, 40703), (6262, 39520), (6448, 38380), (6464, 38285), (6565, 37696), (7657, 32320), (7676, 32240), (7904, 31310), (8060, 30704), (8080, 30628), (9424, 26260), (9595, 25792), (9880, 25048), (9920, 24947), (10504, 23560), (11780, 21008), (12524, 19760), (12896, 19190), (13130, 18848), (15314, 16160), (15352, 16120), (15655, 15808)]