31351580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3259}}^1$

素因数の和:3318

約数の個数: 48

約数和(自身を含む): 72841440

約数和(自身を除く): 41489860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 2405, 3259, 4810, 6518, 9620, 13036, 16295, 32590, 42367, 65180, 84734, 120583, 169468, 211835, 241166, 423670, 482332, 602915, 847340, 1205830, 1567579, 2411660, 3135158, 6270316, 7837895, 15675790, 31351580]

約数ペア:

[(1, 31351580), (2, 15675790), (4, 7837895), (5, 6270316), (10, 3135158), (13, 2411660), (20, 1567579), (26, 1205830), (37, 847340), (52, 602915), (65, 482332), (74, 423670), (130, 241166), (148, 211835), (185, 169468), (260, 120583), (370, 84734), (481, 65180), (740, 42367), (962, 32590), (1924, 16295), (2405, 13036), (3259, 9620), (4810, 6518)]