18874960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18149}}^1$

素因数の和:18175

約数の個数: 40

約数和(自身を含む): 47262600

約数和(自身を除く): 28387640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18149, 36298, 72596, 90745, 145192, 181490, 235937, 290384, 362980, 471874, 725960, 943748, 1179685, 1451920, 1887496, 2359370, 3774992, 4718740, 9437480, 18874960]

約数ペア:

[(1, 18874960), (2, 9437480), (4, 4718740), (5, 3774992), (8, 2359370), (10, 1887496), (13, 1451920), (16, 1179685), (20, 943748), (26, 725960), (40, 471874), (52, 362980), (65, 290384), (80, 235937), (104, 181490), (130, 145192), (208, 90745), (260, 72596), (520, 36298), (1040, 18149)]