9890480

素因数分解:

$2^4\times 5^1\times {\mathrm{123631}}^1$

素因数の和:123644

約数の個数: 20

約数和(自身を含む): 22995552

約数和(自身を除く): 13105072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 123631, 247262, 494524, 618155, 989048, 1236310, 1978096, 2472620, 4945240, 9890480]

約数ペア:

[(1, 9890480), (2, 4945240), (4, 2472620), (5, 1978096), (8, 1236310), (10, 989048), (16, 618155), (20, 494524), (40, 247262), (80, 123631)]