129396580

素因数分解:

$2^2\times 5^1\times {\mathrm{2081}}^1\times {\mathrm{3109}}^1$

素因数の和:5199

約数の個数: 24

約数和(自身を含む): 271950840

約数和(自身を除く): 142554260

約数列:

[1, 2, 4, 5, 10, 20, 2081, 3109, 4162, 6218, 8324, 10405, 12436, 15545, 20810, 31090, 41620, 62180, 6469829, 12939658, 25879316, 32349145, 64698290, 129396580]

約数ペア:

[(1, 129396580), (2, 64698290), (4, 32349145), (5, 25879316), (10, 12939658), (20, 6469829), (2081, 62180), (3109, 41620), (4162, 31090), (6218, 20810), (8324, 15545), (10405, 12436)]