18591920

素因数分解:

$2^4\times 5^1\times {\mathrm{307}}^1\times {\mathrm{757}}^1$

素因数の和:1077

約数の個数: 40

約数和(自身を含む): 43424304

約数和(自身を除く): 24832384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 307, 614, 757, 1228, 1514, 1535, 2456, 3028, 3070, 3785, 4912, 6056, 6140, 7570, 12112, 12280, 15140, 24560, 30280, 60560, 232399, 464798, 929596, 1161995, 1859192, 2323990, 3718384, 4647980, 9295960, 18591920]

約数ペア:

[(1, 18591920), (2, 9295960), (4, 4647980), (5, 3718384), (8, 2323990), (10, 1859192), (16, 1161995), (20, 929596), (40, 464798), (80, 232399), (307, 60560), (614, 30280), (757, 24560), (1228, 15140), (1514, 12280), (1535, 12112), (2456, 7570), (3028, 6140), (3070, 6056), (3785, 4912)]