1261250

素因数分解:

$2^1\times 5^4\times {\mathrm{1009}}^1$

素因数の和:1031

約数の個数: 20

約数和(自身を含む): 2366430

約数和(自身を除く): 1105180

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1009, 1250, 2018, 5045, 10090, 25225, 50450, 126125, 252250, 630625, 1261250]

約数ペア:

[(1, 1261250), (2, 630625), (5, 252250), (10, 126125), (25, 50450), (50, 25225), (125, 10090), (250, 5045), (625, 2018), (1009, 1250)]