12491420

素因数分解:

$2^2\times 5^1\times {\mathrm{619}}^1\times {\mathrm{1009}}^1$

素因数の和:1637

約数の個数: 24

約数和(自身を含む): 26300400

約数和(自身を除く): 13808980

約数列:

[1, 2, 4, 5, 10, 20, 619, 1009, 1238, 2018, 2476, 3095, 4036, 5045, 6190, 10090, 12380, 20180, 624571, 1249142, 2498284, 3122855, 6245710, 12491420]

約数ペア:

[(1, 12491420), (2, 6245710), (4, 3122855), (5, 2498284), (10, 1249142), (20, 624571), (619, 20180), (1009, 12380), (1238, 10090), (2018, 6190), (2476, 5045), (3095, 4036)]