20457362

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1\times {\mathrm{409}}^1$

素因数の和:781

約数の個数: 16

約数和(自身を含む): 31217400

約数和(自身を除く): 10760038

約数列:

[1, 2, 89, 178, 281, 409, 562, 818, 25009, 36401, 50018, 72802, 114929, 229858, 10228681, 20457362]

約数ペア:

[(1, 20457362), (2, 10228681), (89, 229858), (178, 114929), (281, 72802), (409, 50018), (562, 36401), (818, 25009)]