72281990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{3671}}^1$

素因数の和:3868

約数の個数: 32

約数和(自身を含む): 142767360

約数和(自身を除く): 70485370

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 179, 358, 895, 1790, 1969, 3671, 3938, 7342, 9845, 18355, 19690, 36710, 40381, 80762, 201905, 403810, 657109, 1314218, 3285545, 6571090, 7228199, 14456398, 36140995, 72281990]

約数ペア:

[(1, 72281990), (2, 36140995), (5, 14456398), (10, 7228199), (11, 6571090), (22, 3285545), (55, 1314218), (110, 657109), (179, 403810), (358, 201905), (895, 80762), (1790, 40381), (1969, 36710), (3671, 19690), (3938, 18355), (7342, 9845)]