18459220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{70997}}^1$

素因数の和:71019

約数の個数: 24

約数和(自身を含む): 41746824

約数和(自身を除く): 23287604

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 70997, 141994, 283988, 354985, 709970, 922961, 1419940, 1845922, 3691844, 4614805, 9229610, 18459220]

約数ペア:

[(1, 18459220), (2, 9229610), (4, 4614805), (5, 3691844), (10, 1845922), (13, 1419940), (20, 922961), (26, 709970), (52, 354985), (65, 283988), (130, 141994), (260, 70997)]