126830420

素因数分解:

$2^2\times 5^1\times {\mathrm{6341521}}^1$

素因数の和:6341530

約数の個数: 12

約数和(自身を含む): 266343924

約数和(自身を除く): 139513504

約数列:

[1, 2, 4, 5, 10, 20, 6341521, 12683042, 25366084, 31707605, 63415210, 126830420]

約数ペア:

[(1, 126830420), (2, 63415210), (4, 31707605), (5, 25366084), (10, 12683042), (20, 6341521)]