20693530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:559

約数の個数: 64

約数和(自身を含む): 45360000

約数和(自身を除く): 24666470

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 29, 55, 58, 65, 110, 130, 143, 145, 286, 290, 319, 377, 499, 638, 715, 754, 998, 1430, 1595, 1885, 2495, 3190, 3770, 4147, 4990, 5489, 6487, 8294, 10978, 12974, 14471, 20735, 27445, 28942, 32435, 41470, 54890, 64870, 71357, 72355, 142714, 144710, 159181, 188123, 318362, 356785, 376246, 713570, 795905, 940615, 1591810, 1881230, 2069353, 4138706, 10346765, 20693530]

約数ペア:

[(1, 20693530), (2, 10346765), (5, 4138706), (10, 2069353), (11, 1881230), (13, 1591810), (22, 940615), (26, 795905), (29, 713570), (55, 376246), (58, 356785), (65, 318362), (110, 188123), (130, 159181), (143, 144710), (145, 142714), (286, 72355), (290, 71357), (319, 64870), (377, 54890), (499, 41470), (638, 32435), (715, 28942), (754, 27445), (998, 20735), (1430, 14471), (1595, 12974), (1885, 10978), (2495, 8294), (3190, 6487), (3770, 5489), (4147, 4990)]