202815640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163561}}^1$

素因数の和:163603

約数の個数: 32

約数和(自身を含む): 471058560

約数和(自身を除く): 268242920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 163561, 327122, 654244, 817805, 1308488, 1635610, 3271220, 5070391, 6542440, 10140782, 20281564, 25351955, 40563128, 50703910, 101407820, 202815640]

約数ペア:

[(1, 202815640), (2, 101407820), (4, 50703910), (5, 40563128), (8, 25351955), (10, 20281564), (20, 10140782), (31, 6542440), (40, 5070391), (62, 3271220), (124, 1635610), (155, 1308488), (248, 817805), (310, 654244), (620, 327122), (1240, 163561)]