65511280

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{3881}}^1$

素因数の和:4105

約数の個数: 40

約数和(自身を含む): 153075024

約数和(自身を除く): 87563744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 844, 1055, 1688, 2110, 3376, 3881, 4220, 7762, 8440, 15524, 16880, 19405, 31048, 38810, 62096, 77620, 155240, 310480, 818891, 1637782, 3275564, 4094455, 6551128, 8188910, 13102256, 16377820, 32755640, 65511280]

約数ペア:

[(1, 65511280), (2, 32755640), (4, 16377820), (5, 13102256), (8, 8188910), (10, 6551128), (16, 4094455), (20, 3275564), (40, 1637782), (80, 818891), (211, 310480), (422, 155240), (844, 77620), (1055, 62096), (1688, 38810), (2110, 31048), (3376, 19405), (3881, 16880), (4220, 15524), (7762, 8440)]