85721860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{2179}}^1$

素因数の和:2476

約数の個数: 48

約数和(自身を含む): 206559360

約数和(自身を除く): 120837500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 281, 562, 1124, 1405, 1967, 2179, 2810, 3934, 4358, 5620, 7868, 8716, 9835, 10895, 15253, 19670, 21790, 30506, 39340, 43580, 61012, 76265, 152530, 305060, 612299, 1224598, 2449196, 3061495, 4286093, 6122990, 8572186, 12245980, 17144372, 21430465, 42860930, 85721860]

約数ペア:

[(1, 85721860), (2, 42860930), (4, 21430465), (5, 17144372), (7, 12245980), (10, 8572186), (14, 6122990), (20, 4286093), (28, 3061495), (35, 2449196), (70, 1224598), (140, 612299), (281, 305060), (562, 152530), (1124, 76265), (1405, 61012), (1967, 43580), (2179, 39340), (2810, 30506), (3934, 21790), (4358, 19670), (5620, 15253), (7868, 10895), (8716, 9835)]