1320003890

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1670891}}^1$

素因数の和:1670977

約数の個数: 16

約数和(自身を含む): 2406084480

約数和(自身を除く): 1086080590

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 1670891, 3341782, 8354455, 16708910, 132000389, 264000778, 660001945, 1320003890]

約数ペア:

[(1, 1320003890), (2, 660001945), (5, 264000778), (10, 132000389), (79, 16708910), (158, 8354455), (395, 3341782), (790, 1670891)]