128214140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{911}}^1$

素因数の和:1178

約数の個数: 48

約数和(自身を含む): 279465984

約数和(自身を除く): 151251844

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 227, 310, 454, 620, 908, 911, 1135, 1822, 2270, 3644, 4540, 4555, 7037, 9110, 14074, 18220, 28148, 28241, 35185, 56482, 70370, 112964, 140740, 141205, 206797, 282410, 413594, 564820, 827188, 1033985, 2067970, 4135940, 6410707, 12821414, 25642828, 32053535, 64107070, 128214140]

約数ペア:

[(1, 128214140), (2, 64107070), (4, 32053535), (5, 25642828), (10, 12821414), (20, 6410707), (31, 4135940), (62, 2067970), (124, 1033985), (155, 827188), (227, 564820), (310, 413594), (454, 282410), (620, 206797), (908, 141205), (911, 140740), (1135, 112964), (1822, 70370), (2270, 56482), (3644, 35185), (4540, 28241), (4555, 28148), (7037, 18220), (9110, 14074)]