20601250

素因数分解:

$2^1\times 5^4\times {\mathrm{16481}}^1$

素因数の和:16503

約数の個数: 20

約数和(自身を含む): 38617326

約数和(自身を除く): 18016076

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 16481, 32962, 82405, 164810, 412025, 824050, 2060125, 4120250, 10300625, 20601250]

約数ペア:

[(1, 20601250), (2, 10300625), (5, 4120250), (10, 2060125), (25, 824050), (50, 412025), (125, 164810), (250, 82405), (625, 32962), (1250, 16481)]