20311250

素因数分解:

$2^1\times 5^4\times {\mathrm{16249}}^1$

素因数の和:16271

約数の個数: 20

約数和(自身を含む): 38073750

約数和(自身を除く): 17762500

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 16249, 32498, 81245, 162490, 406225, 812450, 2031125, 4062250, 10155625, 20311250]

約数ペア:

[(1, 20311250), (2, 10155625), (5, 4062250), (10, 2031125), (25, 812450), (50, 406225), (125, 162490), (250, 81245), (625, 32498), (1250, 16249)]