20621500

素因数分解:

$2^2\times 5^3\times {\mathrm{41243}}^1$

素因数の和:41262

約数の個数: 24

約数和(自身を含む): 45038448

約数和(自身を除く): 24416948

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 41243, 82486, 164972, 206215, 412430, 824860, 1031075, 2062150, 4124300, 5155375, 10310750, 20621500]

約数ペア:

[(1, 20621500), (2, 10310750), (4, 5155375), (5, 4124300), (10, 2062150), (20, 1031075), (25, 824860), (50, 412430), (100, 206215), (125, 164972), (250, 82486), (500, 41243)]