81605008

素因数分解:

$2^4\times {\mathrm{359}}^1\times {\mathrm{14207}}^1$

素因数の和:14574

約数の個数: 20

約数和(自身を含む): 158561280

約数和(自身を除く): 76956272

約数列:

[1, 2, 4, 8, 16, 359, 718, 1436, 2872, 5744, 14207, 28414, 56828, 113656, 227312, 5100313, 10200626, 20401252, 40802504, 81605008]

約数ペア:

[(1, 81605008), (2, 40802504), (4, 20401252), (8, 10200626), (16, 5100313), (359, 227312), (718, 113656), (1436, 56828), (2872, 28414), (5744, 14207)]