402000580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{283099}}^1$

素因数の和:283179

約数の個数: 24

約数和(自身を含む): 856094400

約数和(自身を除く): 454093820

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 283099, 566198, 1132396, 1415495, 2830990, 5661980, 20100029, 40200058, 80400116, 100500145, 201000290, 402000580]

約数ペア:

[(1, 402000580), (2, 201000290), (4, 100500145), (5, 80400116), (10, 40200058), (20, 20100029), (71, 5661980), (142, 2830990), (284, 1415495), (355, 1132396), (710, 566198), (1420, 283099)]