812506540

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{310117}}^1$

素因数の和:310257

約数の個数: 24

約数和(自身を含む): 1719294192

約数和(自身を除く): 906787652

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 310117, 620234, 1240468, 1550585, 3101170, 6202340, 40625327, 81250654, 162501308, 203126635, 406253270, 812506540]

約数ペア:

[(1, 812506540), (2, 406253270), (4, 203126635), (5, 162501308), (10, 81250654), (20, 40625327), (131, 6202340), (262, 3101170), (524, 1550585), (655, 1240468), (1310, 620234), (2620, 310117)]