2021490250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{621997}}^1$

素因数の和:622027

約数の個数: 32

約数和(自身を含む): 4075330896

約数和(自身を除く): 2053840646

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 3250, 621997, 1243994, 3109985, 6219970, 8085961, 15549925, 16171922, 31099850, 40429805, 77749625, 80859610, 155499250, 202149025, 404298050, 1010745125, 2021490250]

約数ペア:

[(1, 2021490250), (2, 1010745125), (5, 404298050), (10, 202149025), (13, 155499250), (25, 80859610), (26, 77749625), (50, 40429805), (65, 31099850), (125, 16171922), (130, 15549925), (250, 8085961), (325, 6219970), (650, 3109985), (1625, 1243994), (3250, 621997)]