2989100

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:506

約数の個数: 36

約数和(自身を含む): 6593328

約数和(自身を除く): 3604228

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 421, 710, 842, 1420, 1684, 1775, 2105, 3550, 4210, 7100, 8420, 10525, 21050, 29891, 42100, 59782, 119564, 149455, 298910, 597820, 747275, 1494550, 2989100]

約数ペア:

[(1, 2989100), (2, 1494550), (4, 747275), (5, 597820), (10, 298910), (20, 149455), (25, 119564), (50, 59782), (71, 42100), (100, 29891), (142, 21050), (284, 10525), (355, 8420), (421, 7100), (710, 4210), (842, 3550), (1420, 2105), (1684, 1775)]