131518180

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{40343}}^1$

素因数の和:40515

約数の個数: 24

約数和(自身を含む): 277889472

約数和(自身を除く): 146371292

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 40343, 80686, 161372, 201715, 403430, 806860, 6575909, 13151818, 26303636, 32879545, 65759090, 131518180]

約数ペア:

[(1, 131518180), (2, 65759090), (4, 32879545), (5, 26303636), (10, 13151818), (20, 6575909), (163, 806860), (326, 403430), (652, 201715), (815, 161372), (1630, 80686), (3260, 40343)]