129125072

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{196837}}^1$

素因数の和:196886

約数の個数: 20

約数和(自身を含む): 256283076

約数和(自身を除く): 127158004

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 196837, 393674, 787348, 1574696, 3149392, 8070317, 16140634, 32281268, 64562536, 129125072]

約数ペア:

[(1, 129125072), (2, 64562536), (4, 32281268), (8, 16140634), (16, 8070317), (41, 3149392), (82, 1574696), (164, 787348), (328, 393674), (656, 196837)]