57231640

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{6781}}^1$

素因数の和:7003

約数の個数: 32

約数和(自身を含む): 129400560

約数和(自身を除く): 72168920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 6781, 8440, 13562, 27124, 33905, 54248, 67810, 135620, 271240, 1430791, 2861582, 5723164, 7153955, 11446328, 14307910, 28615820, 57231640]

約数ペア:

[(1, 57231640), (2, 28615820), (4, 14307910), (5, 11446328), (8, 7153955), (10, 5723164), (20, 2861582), (40, 1430791), (211, 271240), (422, 135620), (844, 67810), (1055, 54248), (1688, 33905), (2110, 27124), (4220, 13562), (6781, 8440)]