129436520

素因数分解:

$2^3\times 5^1\times {\mathrm{881}}^1\times {\mathrm{3673}}^1$

素因数の和:4565

約数の個数: 32

約数和(自身を含む): 291642120

約数和(自身を除く): 162205600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 881, 1762, 3524, 3673, 4405, 7048, 7346, 8810, 14692, 17620, 18365, 29384, 35240, 36730, 73460, 146920, 3235913, 6471826, 12943652, 16179565, 25887304, 32359130, 64718260, 129436520]

約数ペア:

[(1, 129436520), (2, 64718260), (4, 32359130), (5, 25887304), (8, 16179565), (10, 12943652), (20, 6471826), (40, 3235913), (881, 146920), (1762, 73460), (3524, 36730), (3673, 35240), (4405, 29384), (7048, 18365), (7346, 17620), (8810, 14692)]