81375890

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{62119}}^1$

素因数の和:62257

約数の個数: 16

約数和(自身を含む): 147597120

約数和(自身を除く): 66221230

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 62119, 124238, 310595, 621190, 8137589, 16275178, 40687945, 81375890]

約数ペア:

[(1, 81375890), (2, 40687945), (5, 16275178), (10, 8137589), (131, 621190), (262, 310595), (655, 124238), (1310, 62119)]