20033500

素因数分解:

$2^2\times 5^3\times {\mathrm{103}}^1\times {\mathrm{389}}^1$

素因数の和:511

約数の個数: 48

約数和(自身を含む): 44291520

約数和(自身を除く): 24258020

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 103, 125, 206, 250, 389, 412, 500, 515, 778, 1030, 1556, 1945, 2060, 2575, 3890, 5150, 7780, 9725, 10300, 12875, 19450, 25750, 38900, 40067, 48625, 51500, 80134, 97250, 160268, 194500, 200335, 400670, 801340, 1001675, 2003350, 4006700, 5008375, 10016750, 20033500]

約数ペア:

[(1, 20033500), (2, 10016750), (4, 5008375), (5, 4006700), (10, 2003350), (20, 1001675), (25, 801340), (50, 400670), (100, 200335), (103, 194500), (125, 160268), (206, 97250), (250, 80134), (389, 51500), (412, 48625), (500, 40067), (515, 38900), (778, 25750), (1030, 19450), (1556, 12875), (1945, 10300), (2060, 9725), (2575, 7780), (3890, 5150)]