71989940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{337}}^1\times {\mathrm{971}}^1$

素因数の和:1328

約数の個数: 48

約数和(自身を含む): 165582144

約数和(自身を除く): 93592204

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 337, 674, 971, 1348, 1685, 1942, 3370, 3707, 3884, 4855, 6740, 7414, 9710, 10681, 14828, 18535, 19420, 21362, 37070, 42724, 53405, 74140, 106810, 213620, 327227, 654454, 1308908, 1636135, 3272270, 3599497, 6544540, 7198994, 14397988, 17997485, 35994970, 71989940]

約数ペア:

[(1, 71989940), (2, 35994970), (4, 17997485), (5, 14397988), (10, 7198994), (11, 6544540), (20, 3599497), (22, 3272270), (44, 1636135), (55, 1308908), (110, 654454), (220, 327227), (337, 213620), (674, 106810), (971, 74140), (1348, 53405), (1685, 42724), (1942, 37070), (3370, 21362), (3707, 19420), (3884, 18535), (4855, 14828), (6740, 10681), (7414, 9710)]