17811950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{409}}^1$

素因数の和:501

約数の個数: 48

約数和(自身を含む): 36299760

約数和(自身を除く): 18487810

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 67, 130, 134, 325, 335, 409, 650, 670, 818, 871, 1675, 1742, 2045, 3350, 4090, 4355, 5317, 8710, 10225, 10634, 20450, 21775, 26585, 27403, 43550, 53170, 54806, 132925, 137015, 265850, 274030, 356239, 685075, 712478, 1370150, 1781195, 3562390, 8905975, 17811950]

約数ペア:

[(1, 17811950), (2, 8905975), (5, 3562390), (10, 1781195), (13, 1370150), (25, 712478), (26, 685075), (50, 356239), (65, 274030), (67, 265850), (130, 137015), (134, 132925), (325, 54806), (335, 53170), (409, 43550), (650, 27403), (670, 26585), (818, 21775), (871, 20450), (1675, 10634), (1742, 10225), (2045, 8710), (3350, 5317), (4090, 4355)]