18428970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{691}}^1$

素因数の和:835

約数の個数: 64

約数和(自身を含む): 51019776

約数和(自身を除く): 32590806

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 127, 210, 254, 381, 635, 691, 762, 889, 1270, 1382, 1778, 1905, 2073, 2667, 3455, 3810, 4146, 4445, 4837, 5334, 6910, 8890, 9674, 10365, 13335, 14511, 20730, 24185, 26670, 29022, 48370, 72555, 87757, 145110, 175514, 263271, 438785, 526542, 614299, 877570, 1228598, 1316355, 1842897, 2632710, 3071495, 3685794, 6142990, 9214485, 18428970]

約数ペア:

[(1, 18428970), (2, 9214485), (3, 6142990), (5, 3685794), (6, 3071495), (7, 2632710), (10, 1842897), (14, 1316355), (15, 1228598), (21, 877570), (30, 614299), (35, 526542), (42, 438785), (70, 263271), (105, 175514), (127, 145110), (210, 87757), (254, 72555), (381, 48370), (635, 29022), (691, 26670), (762, 24185), (889, 20730), (1270, 14511), (1382, 13335), (1778, 10365), (1905, 9674), (2073, 8890), (2667, 6910), (3455, 5334), (3810, 4837), (4146, 4445)]