66940840

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{10267}}^1$

素因数の和:10441

約数の個数: 32

約数和(自身を含む): 151555680

約数和(自身を除く): 84614840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 10267, 20534, 41068, 51335, 82136, 102670, 205340, 410680, 1673521, 3347042, 6694084, 8367605, 13388168, 16735210, 33470420, 66940840]

約数ペア:

[(1, 66940840), (2, 33470420), (4, 16735210), (5, 13388168), (8, 8367605), (10, 6694084), (20, 3347042), (40, 1673521), (163, 410680), (326, 205340), (652, 102670), (815, 82136), (1304, 51335), (1630, 41068), (3260, 20534), (6520, 10267)]