27807940

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{13499}}^1$

素因数の和:13611

約数の個数: 24

約数和(自身を含む): 58968000

約数和(自身を除く): 31160060

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 13499, 26998, 53996, 67495, 134990, 269980, 1390397, 2780794, 5561588, 6951985, 13903970, 27807940]

約数ペア:

[(1, 27807940), (2, 13903970), (4, 6951985), (5, 5561588), (10, 2780794), (20, 1390397), (103, 269980), (206, 134990), (412, 67495), (515, 53996), (1030, 26998), (2060, 13499)]