20120204420

素因数分解:

$2^2\times 5^1\times {\mathrm{1006010221}}^1$

素因数の和:1006010230

約数の個数: 12

約数和(自身を含む): 42252429324

約数和(自身を除く): 22132224904

約数列:

[1, 2, 4, 5, 10, 20, 1006010221, 2012020442, 4024040884, 5030051105, 10060102210, 20120204420]

約数ペア:

[(1, 20120204420), (2, 10060102210), (4, 5030051105), (5, 4024040884), (10, 2012020442), (20, 1006010221)]