1388954390

素因数分解:

$2^1\times 5^1\times {\mathrm{701}}^1\times {\mathrm{198139}}^1$

素因数の和:198847

約数の個数: 16

約数和(自身を含む): 2503697040

約数和(自身を除く): 1114742650

約数列:

[1, 2, 5, 10, 701, 1402, 3505, 7010, 198139, 396278, 990695, 1981390, 138895439, 277790878, 694477195, 1388954390]

約数ペア:

[(1, 1388954390), (2, 694477195), (5, 277790878), (10, 138895439), (701, 1981390), (1402, 990695), (3505, 396278), (7010, 198139)]