68899220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{264997}}^1$

素因数の和:265019

約数の個数: 24

約数和(自身を含む): 155818824

約数和(自身を除く): 86919604

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 264997, 529994, 1059988, 1324985, 2649970, 3444961, 5299940, 6889922, 13779844, 17224805, 34449610, 68899220]

約数ペア:

[(1, 68899220), (2, 34449610), (4, 17224805), (5, 13779844), (10, 6889922), (13, 5299940), (20, 3444961), (26, 2649970), (52, 1324985), (65, 1059988), (130, 529994), (260, 264997)]