31211830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{487}}^1$

素因数の和:553

約数の個数: 64

約数和(自身を含む): 66407040

約数和(自身を除く): 35195210

約数列:

[1, 2, 5, 10, 13, 17, 26, 29, 34, 58, 65, 85, 130, 145, 170, 221, 290, 377, 442, 487, 493, 754, 974, 986, 1105, 1885, 2210, 2435, 2465, 3770, 4870, 4930, 6331, 6409, 8279, 12662, 12818, 14123, 16558, 28246, 31655, 32045, 41395, 63310, 64090, 70615, 82790, 107627, 141230, 183599, 215254, 240091, 367198, 480182, 538135, 917995, 1076270, 1200455, 1835990, 2400910, 3121183, 6242366, 15605915, 31211830]

約数ペア:

[(1, 31211830), (2, 15605915), (5, 6242366), (10, 3121183), (13, 2400910), (17, 1835990), (26, 1200455), (29, 1076270), (34, 917995), (58, 538135), (65, 480182), (85, 367198), (130, 240091), (145, 215254), (170, 183599), (221, 141230), (290, 107627), (377, 82790), (442, 70615), (487, 64090), (493, 63310), (754, 41395), (974, 32045), (986, 31655), (1105, 28246), (1885, 16558), (2210, 14123), (2435, 12818), (2465, 12662), (3770, 8279), (4870, 6409), (4930, 6331)]