12788940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{213149}}^1$

素因数の和:213161

約数の個数: 24

約数和(自身を含む): 35809200

約数和(自身を除く): 23020260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 213149, 426298, 639447, 852596, 1065745, 1278894, 2131490, 2557788, 3197235, 4262980, 6394470, 12788940]

約数ペア:

[(1, 12788940), (2, 6394470), (3, 4262980), (4, 3197235), (5, 2557788), (6, 2131490), (10, 1278894), (12, 1065745), (15, 852596), (20, 639447), (30, 426298), (60, 213149)]