20712250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{6373}}^1$

素因数の和:6403

約数の個数: 32

約数和(自身を含む): 41762448

約数和(自身を除く): 21050198

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 3250, 6373, 12746, 31865, 63730, 82849, 159325, 165698, 318650, 414245, 796625, 828490, 1593250, 2071225, 4142450, 10356125, 20712250]

約数ペア:

[(1, 20712250), (2, 10356125), (5, 4142450), (10, 2071225), (13, 1593250), (25, 828490), (26, 796625), (50, 414245), (65, 318650), (125, 165698), (130, 159325), (250, 82849), (325, 63730), (650, 31865), (1625, 12746), (3250, 6373)]