309531980

素因数分解:

$2^2\times 5^1\times {\mathrm{1873}}^1\times {\mathrm{8263}}^1$

素因数の和:10145

約数の個数: 24

約数和(自身を含む): 650442912

約数和(自身を除く): 340910932

約数列:

[1, 2, 4, 5, 10, 20, 1873, 3746, 7492, 8263, 9365, 16526, 18730, 33052, 37460, 41315, 82630, 165260, 15476599, 30953198, 61906396, 77382995, 154765990, 309531980]

約数ペア:

[(1, 309531980), (2, 154765990), (4, 77382995), (5, 61906396), (10, 30953198), (20, 15476599), (1873, 165260), (3746, 82630), (7492, 41315), (8263, 37460), (9365, 33052), (16526, 18730)]