205815280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{233881}}^1$

素因数の和:233905

約数の個数: 40

約数和(自身を含む): 522024624

約数和(自身を除く): 316209344

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 233881, 467762, 935524, 1169405, 1871048, 2338810, 2572691, 3742096, 4677620, 5145382, 9355240, 10290764, 12863455, 18710480, 20581528, 25726910, 41163056, 51453820, 102907640, 205815280]

約数ペア:

[(1, 205815280), (2, 102907640), (4, 51453820), (5, 41163056), (8, 25726910), (10, 20581528), (11, 18710480), (16, 12863455), (20, 10290764), (22, 9355240), (40, 5145382), (44, 4677620), (55, 3742096), (80, 2572691), (88, 2338810), (110, 1871048), (176, 1169405), (220, 935524), (440, 467762), (880, 233881)]