20873680

素因数分解:

$2^4\times 5^1\times {\mathrm{260921}}^1$

素因数の和:260934

約数の個数: 20

約数和(自身を含む): 48531492

約数和(自身を除く): 27657812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 260921, 521842, 1043684, 1304605, 2087368, 2609210, 4174736, 5218420, 10436840, 20873680]

約数ペア:

[(1, 20873680), (2, 10436840), (4, 5218420), (5, 4174736), (8, 2609210), (10, 2087368), (16, 1304605), (20, 1043684), (40, 521842), (80, 260921)]