518879420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{4211}}^1$

素因数の和:4382

約数の個数: 48

約数和(自身を含む): 1118740896

約数和(自身を除く): 599861476

約数列:

[1, 2, 4, 5, 10, 20, 61, 101, 122, 202, 244, 305, 404, 505, 610, 1010, 1220, 2020, 4211, 6161, 8422, 12322, 16844, 21055, 24644, 30805, 42110, 61610, 84220, 123220, 256871, 425311, 513742, 850622, 1027484, 1284355, 1701244, 2126555, 2568710, 4253110, 5137420, 8506220, 25943971, 51887942, 103775884, 129719855, 259439710, 518879420]

約数ペア:

[(1, 518879420), (2, 259439710), (4, 129719855), (5, 103775884), (10, 51887942), (20, 25943971), (61, 8506220), (101, 5137420), (122, 4253110), (202, 2568710), (244, 2126555), (305, 1701244), (404, 1284355), (505, 1027484), (610, 850622), (1010, 513742), (1220, 425311), (2020, 256871), (4211, 123220), (6161, 84220), (8422, 61610), (12322, 42110), (16844, 30805), (21055, 24644)]