259022420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{315881}}^1$

素因数の和:315931

約数の個数: 24

約数和(自身を含む): 557215848

約数和(自身を除く): 298193428

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 315881, 631762, 1263524, 1579405, 3158810, 6317620, 12951121, 25902242, 51804484, 64755605, 129511210, 259022420]

約数ペア:

[(1, 259022420), (2, 129511210), (4, 64755605), (5, 51804484), (10, 25902242), (20, 12951121), (41, 6317620), (82, 3158810), (164, 1579405), (205, 1263524), (410, 631762), (820, 315881)]