9901240

素因数分解:

$2^3\times 5^1\times {\mathrm{247531}}^1$

素因数の和:247542

約数の個数: 16

約数和(自身を含む): 22277880

約数和(自身を除く): 12376640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 247531, 495062, 990124, 1237655, 1980248, 2475310, 4950620, 9901240]

約数ペア:

[(1, 9901240), (2, 4950620), (4, 2475310), (5, 1980248), (8, 1237655), (10, 990124), (20, 495062), (40, 247531)]