1720339940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1\times {\mathrm{457}}^1$

素因数の和:789

約数の個数: 96

約数和(自身を含む): 4022016768

約数和(自身を除く): 2301676828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 241, 284, 355, 457, 482, 710, 781, 914, 964, 1205, 1420, 1562, 1828, 2285, 2410, 2651, 3124, 3905, 4570, 4820, 5027, 5302, 7810, 9140, 10054, 10604, 13255, 15620, 17111, 20108, 25135, 26510, 32447, 34222, 50270, 53020, 64894, 68444, 85555, 100540, 110137, 129788, 162235, 171110, 188221, 220274, 324470, 342220, 356917, 376442, 440548, 550685, 648940, 713834, 752884, 941105, 1101370, 1211507, 1427668, 1784585, 1882210, 2202740, 2423014, 3569170, 3764420, 4846028, 6057535, 7138340, 7819727, 12115070, 15639454, 24230140, 31278908, 39098635, 78197270, 86016997, 156394540, 172033994, 344067988, 430084985, 860169970, 1720339940]

約数ペア:

[(1, 1720339940), (2, 860169970), (4, 430084985), (5, 344067988), (10, 172033994), (11, 156394540), (20, 86016997), (22, 78197270), (44, 39098635), (55, 31278908), (71, 24230140), (110, 15639454), (142, 12115070), (220, 7819727), (241, 7138340), (284, 6057535), (355, 4846028), (457, 3764420), (482, 3569170), (710, 2423014), (781, 2202740), (914, 1882210), (964, 1784585), (1205, 1427668), (1420, 1211507), (1562, 1101370), (1828, 941105), (2285, 752884), (2410, 713834), (2651, 648940), (3124, 550685), (3905, 440548), (4570, 376442), (4820, 356917), (5027, 342220), (5302, 324470), (7810, 220274), (9140, 188221), (10054, 171110), (10604, 162235), (13255, 129788), (15620, 110137), (17111, 100540), (20108, 85555), (25135, 68444), (26510, 64894), (32447, 53020), (34222, 50270)]