20318670

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{563}}^1$

素因数の和:977

約数の個数: 48

約数和(自身を含む): 53054352

約数和(自身を除く): 32735682

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 401, 563, 802, 1126, 1203, 1689, 2005, 2406, 2815, 3378, 3609, 4010, 5067, 5630, 6015, 7218, 8445, 10134, 12030, 16890, 18045, 25335, 36090, 50670, 225763, 451526, 677289, 1128815, 1354578, 2031867, 2257630, 3386445, 4063734, 6772890, 10159335, 20318670]

約数ペア:

[(1, 20318670), (2, 10159335), (3, 6772890), (5, 4063734), (6, 3386445), (9, 2257630), (10, 2031867), (15, 1354578), (18, 1128815), (30, 677289), (45, 451526), (90, 225763), (401, 50670), (563, 36090), (802, 25335), (1126, 18045), (1203, 16890), (1689, 12030), (2005, 10134), (2406, 8445), (2815, 7218), (3378, 6015), (3609, 5630), (4010, 5067)]