18964875

素因数分解:

$3^1\times 5^3\times {\mathrm{103}}^1\times {\mathrm{491}}^1$

素因数の和:612

約数の個数: 32

約数和(自身を含む): 31928832

約数和(自身を除く): 12963957

約数列:

[1, 3, 5, 15, 25, 75, 103, 125, 309, 375, 491, 515, 1473, 1545, 2455, 2575, 7365, 7725, 12275, 12875, 36825, 38625, 50573, 61375, 151719, 184125, 252865, 758595, 1264325, 3792975, 6321625, 18964875]

約数ペア:

[(1, 18964875), (3, 6321625), (5, 3792975), (15, 1264325), (25, 758595), (75, 252865), (103, 184125), (125, 151719), (309, 61375), (375, 50573), (491, 38625), (515, 36825), (1473, 12875), (1545, 12275), (2455, 7725), (2575, 7365)]