1644930840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{27581}}^1$

素因数の和:27673

約数の個数: 128

約数和(自身を含む): 5719403520

約数和(自身を除く): 4074472680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 71, 84, 105, 120, 140, 142, 168, 210, 213, 280, 284, 355, 420, 426, 497, 568, 710, 840, 852, 994, 1065, 1420, 1491, 1704, 1988, 2130, 2485, 2840, 2982, 3976, 4260, 4970, 5964, 7455, 8520, 9940, 11928, 14910, 19880, 27581, 29820, 55162, 59640, 82743, 110324, 137905, 165486, 193067, 220648, 275810, 330972, 386134, 413715, 551620, 579201, 661944, 772268, 827430, 965335, 1103240, 1158402, 1544536, 1654860, 1930670, 1958251, 2316804, 2896005, 3309720, 3861340, 3916502, 4633608, 5792010, 5874753, 7722680, 7833004, 9791255, 11584020, 11749506, 13707757, 15666008, 19582510, 23168040, 23499012, 27415514, 29373765, 39165020, 41123271, 46998024, 54831028, 58747530, 68538785, 78330040, 82246542, 109662056, 117495060, 137077570, 164493084, 205616355, 234990120, 274155140, 328986168, 411232710, 548310280, 822465420, 1644930840]

約数ペア:

[(1, 1644930840), (2, 822465420), (3, 548310280), (4, 411232710), (5, 328986168), (6, 274155140), (7, 234990120), (8, 205616355), (10, 164493084), (12, 137077570), (14, 117495060), (15, 109662056), (20, 82246542), (21, 78330040), (24, 68538785), (28, 58747530), (30, 54831028), (35, 46998024), (40, 41123271), (42, 39165020), (56, 29373765), (60, 27415514), (70, 23499012), (71, 23168040), (84, 19582510), (105, 15666008), (120, 13707757), (140, 11749506), (142, 11584020), (168, 9791255), (210, 7833004), (213, 7722680), (280, 5874753), (284, 5792010), (355, 4633608), (420, 3916502), (426, 3861340), (497, 3309720), (568, 2896005), (710, 2316804), (840, 1958251), (852, 1930670), (994, 1654860), (1065, 1544536), (1420, 1158402), (1491, 1103240), (1704, 965335), (1988, 827430), (2130, 772268), (2485, 661944), (2840, 579201), (2982, 551620), (3976, 413715), (4260, 386134), (4970, 330972), (5964, 275810), (7455, 220648), (8520, 193067), (9940, 165486), (11928, 137905), (14910, 110324), (19880, 82743), (27581, 59640), (29820, 55162)]