81191930

素因数分解:

$2^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{49811}}^1$

素因数の和:49981

約数の個数: 16

約数和(自身を含む): 147045024

約数和(自身を除く): 65853094

約数列:

[1, 2, 5, 10, 163, 326, 815, 1630, 49811, 99622, 249055, 498110, 8119193, 16238386, 40595965, 81191930]

約数ペア:

[(1, 81191930), (2, 40595965), (5, 16238386), (10, 8119193), (163, 498110), (326, 249055), (815, 99622), (1630, 49811)]