1330251640

素因数分解:

$2^3\times 5^1\times {\mathrm{887}}^1\times {\mathrm{37493}}^1$

素因数の和:38391

約数の個数: 32

約数和(自身を含む): 2996520480

約数和(自身を除く): 1666268840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 887, 1774, 3548, 4435, 7096, 8870, 17740, 35480, 37493, 74986, 149972, 187465, 299944, 374930, 749860, 1499720, 33256291, 66512582, 133025164, 166281455, 266050328, 332562910, 665125820, 1330251640]

約数ペア:

[(1, 1330251640), (2, 665125820), (4, 332562910), (5, 266050328), (8, 166281455), (10, 133025164), (20, 66512582), (40, 33256291), (887, 1499720), (1774, 749860), (3548, 374930), (4435, 299944), (7096, 187465), (8870, 149972), (17740, 74986), (35480, 37493)]