77259290

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{19861}}^1$

素因数の和:20257

約数の個数: 16

約数和(自身を含む): 139431240

約数和(自身を除く): 62171950

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 19861, 39722, 99305, 198610, 7725929, 15451858, 38629645, 77259290]

約数ペア:

[(1, 77259290), (2, 38629645), (5, 15451858), (10, 7725929), (389, 198610), (778, 99305), (1945, 39722), (3890, 19861)]