261521354642

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{28859}}^1\times {\mathrm{74279}}^1$

素因数の和:103201

約数の個数: 16

約数和(自身を含む): 398732068800

約数和(自身を除く): 137210714158

約数列:

[1, 2, 61, 122, 28859, 57718, 74279, 148558, 1760399, 3520798, 4531019, 9062038, 2143617661, 4287235322, 130760677321, 261521354642]

約数ペア:

[(1, 261521354642), (2, 130760677321), (61, 4287235322), (122, 2143617661), (28859, 9062038), (57718, 4531019), (74279, 3520798), (148558, 1760399)]