721115760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{419}}^1$

素因数の和:607

約数の個数: 160

約数和(自身を含む): 2294853120

約数和(自身を除く): 1573737360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 71, 80, 101, 120, 142, 202, 213, 240, 284, 303, 355, 404, 419, 426, 505, 568, 606, 710, 808, 838, 852, 1010, 1065, 1136, 1212, 1257, 1420, 1515, 1616, 1676, 1704, 2020, 2095, 2130, 2424, 2514, 2840, 3030, 3352, 3408, 4040, 4190, 4260, 4848, 5028, 5680, 6060, 6285, 6704, 7171, 8080, 8380, 8520, 10056, 12120, 12570, 14342, 16760, 17040, 20112, 21513, 24240, 25140, 28684, 29749, 33520, 35855, 42319, 43026, 50280, 57368, 59498, 71710, 84638, 86052, 89247, 100560, 107565, 114736, 118996, 126957, 143420, 148745, 169276, 172104, 178494, 211595, 215130, 237992, 253914, 286840, 297490, 338552, 344208, 356988, 423190, 430260, 446235, 475984, 507828, 573680, 594980, 634785, 677104, 713976, 846380, 860520, 892470, 1015656, 1189960, 1269570, 1427952, 1692760, 1721040, 1784940, 2031312, 2379920, 2539140, 3004649, 3385520, 3569880, 5078280, 6009298, 7139760, 9013947, 10156560, 12018596, 15023245, 18027894, 24037192, 30046490, 36055788, 45069735, 48074384, 60092980, 72111576, 90139470, 120185960, 144223152, 180278940, 240371920, 360557880, 721115760]

約数ペア:

[(1, 721115760), (2, 360557880), (3, 240371920), (4, 180278940), (5, 144223152), (6, 120185960), (8, 90139470), (10, 72111576), (12, 60092980), (15, 48074384), (16, 45069735), (20, 36055788), (24, 30046490), (30, 24037192), (40, 18027894), (48, 15023245), (60, 12018596), (71, 10156560), (80, 9013947), (101, 7139760), (120, 6009298), (142, 5078280), (202, 3569880), (213, 3385520), (240, 3004649), (284, 2539140), (303, 2379920), (355, 2031312), (404, 1784940), (419, 1721040), (426, 1692760), (505, 1427952), (568, 1269570), (606, 1189960), (710, 1015656), (808, 892470), (838, 860520), (852, 846380), (1010, 713976), (1065, 677104), (1136, 634785), (1212, 594980), (1257, 573680), (1420, 507828), (1515, 475984), (1616, 446235), (1676, 430260), (1704, 423190), (2020, 356988), (2095, 344208), (2130, 338552), (2424, 297490), (2514, 286840), (2840, 253914), (3030, 237992), (3352, 215130), (3408, 211595), (4040, 178494), (4190, 172104), (4260, 169276), (4848, 148745), (5028, 143420), (5680, 126957), (6060, 118996), (6285, 114736), (6704, 107565), (7171, 100560), (8080, 89247), (8380, 86052), (8520, 84638), (10056, 71710), (12120, 59498), (12570, 57368), (14342, 50280), (16760, 43026), (17040, 42319), (20112, 35855), (21513, 33520), (24240, 29749), (25140, 28684)]