8708404420

素因数分解:

$2^2\times 5^1\times {\mathrm{435420221}}^1$

素因数の和:435420230

約数の個数: 12

約数和(自身を含む): 18287649324

約数和(自身を除く): 9579244904

約数列:

[1, 2, 4, 5, 10, 20, 435420221, 870840442, 1741680884, 2177101105, 4354202210, 8708404420]

約数ペア:

[(1, 8708404420), (2, 4354202210), (4, 2177101105), (5, 1741680884), (10, 870840442), (20, 435420221)]