31566860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{383}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 71801856

約数和(自身を除く): 40234996

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 317, 383, 634, 766, 1268, 1532, 1585, 1915, 3170, 3830, 4121, 4979, 6340, 7660, 8242, 9958, 16484, 19916, 20605, 24895, 41210, 49790, 82420, 99580, 121411, 242822, 485644, 607055, 1214110, 1578343, 2428220, 3156686, 6313372, 7891715, 15783430, 31566860]

約数ペア:

[(1, 31566860), (2, 15783430), (4, 7891715), (5, 6313372), (10, 3156686), (13, 2428220), (20, 1578343), (26, 1214110), (52, 607055), (65, 485644), (130, 242822), (260, 121411), (317, 99580), (383, 82420), (634, 49790), (766, 41210), (1268, 24895), (1532, 20605), (1585, 19916), (1915, 16484), (3170, 9958), (3830, 8242), (4121, 7660), (4979, 6340)]