21754640

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{9377}}^1$

素因数の和:9419

約数の個数: 40

約数和(自身を含む): 52329240

約数和(自身を除く): 30574600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 9377, 18754, 37508, 46885, 75016, 93770, 150032, 187540, 271933, 375080, 543866, 750160, 1087732, 1359665, 2175464, 2719330, 4350928, 5438660, 10877320, 21754640]

約数ペア:

[(1, 21754640), (2, 10877320), (4, 5438660), (5, 4350928), (8, 2719330), (10, 2175464), (16, 1359665), (20, 1087732), (29, 750160), (40, 543866), (58, 375080), (80, 271933), (116, 187540), (145, 150032), (232, 93770), (290, 75016), (464, 46885), (580, 37508), (1160, 18754), (2320, 9377)]