20916860

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{4567}}^1$

素因数の和:4805

約数の個数: 24

約数和(自身を含む): 44126880

約数和(自身を除く): 23210020

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4567, 4580, 9134, 18268, 22835, 45670, 91340, 1045843, 2091686, 4183372, 5229215, 10458430, 20916860]

約数ペア:

[(1, 20916860), (2, 10458430), (4, 5229215), (5, 4183372), (10, 2091686), (20, 1045843), (229, 91340), (458, 45670), (916, 22835), (1145, 18268), (2290, 9134), (4567, 4580)]