8163220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31397}}^1$

素因数の和:31419

約数の個数: 24

約数和(自身を含む): 18462024

約数和(自身を除く): 10298804

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 31397, 62794, 125588, 156985, 313970, 408161, 627940, 816322, 1632644, 2040805, 4081610, 8163220]

約数ペア:

[(1, 8163220), (2, 4081610), (4, 2040805), (5, 1632644), (10, 816322), (13, 627940), (20, 408161), (26, 313970), (52, 156985), (65, 125588), (130, 62794), (260, 31397)]