66403240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53551}}^1$

素因数の和:53593

約数の個数: 32

約数和(自身を含む): 154229760

約数和(自身を除く): 87826520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 53551, 107102, 214204, 267755, 428408, 535510, 1071020, 1660081, 2142040, 3320162, 6640324, 8300405, 13280648, 16600810, 33201620, 66403240]

約数ペア:

[(1, 66403240), (2, 33201620), (4, 16600810), (5, 13280648), (8, 8300405), (10, 6640324), (20, 3320162), (31, 2142040), (40, 1660081), (62, 1071020), (124, 535510), (155, 428408), (248, 267755), (310, 214204), (620, 107102), (1240, 53551)]