257942740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1172467}}^1$

素因数の和:1172487

約数の個数: 24

約数和(自身を含む): 590923872

約数和(自身を除く): 332981132

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1172467, 2344934, 4689868, 5862335, 11724670, 12897137, 23449340, 25794274, 51588548, 64485685, 128971370, 257942740]

約数ペア:

[(1, 257942740), (2, 128971370), (4, 64485685), (5, 51588548), (10, 25794274), (11, 23449340), (20, 12897137), (22, 11724670), (44, 5862335), (55, 4689868), (110, 2344934), (220, 1172467)]