15971450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{409}}^1$

素因数の和:503

約数の個数: 48

約数和(自身を含む): 32944320

約数和(自身を除く): 16972870

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 71, 110, 142, 275, 355, 409, 550, 710, 781, 818, 1562, 1775, 2045, 3550, 3905, 4090, 4499, 7810, 8998, 10225, 19525, 20450, 22495, 29039, 39050, 44990, 58078, 112475, 145195, 224950, 290390, 319429, 638858, 725975, 1451950, 1597145, 3194290, 7985725, 15971450]

約数ペア:

[(1, 15971450), (2, 7985725), (5, 3194290), (10, 1597145), (11, 1451950), (22, 725975), (25, 638858), (50, 319429), (55, 290390), (71, 224950), (110, 145195), (142, 112475), (275, 58078), (355, 44990), (409, 39050), (550, 29039), (710, 22495), (781, 20450), (818, 19525), (1562, 10225), (1775, 8998), (2045, 7810), (3550, 4499), (3905, 4090)]