1981991090

素因数分解:

$2^1\times 5^1\times {\mathrm{1049}}^1\times {\mathrm{188941}}^1$

素因数の和:189997

約数の個数: 16

約数和(自身を含む): 3571003800

約数和(自身を除く): 1589012710

約数列:

[1, 2, 5, 10, 1049, 2098, 5245, 10490, 188941, 377882, 944705, 1889410, 198199109, 396398218, 990995545, 1981991090]

約数ペア:

[(1, 1981991090), (2, 990995545), (5, 396398218), (10, 198199109), (1049, 1889410), (2098, 944705), (5245, 377882), (10490, 188941)]