129109780

素因数分解:

$2^2\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{5821}}^1$

素因数の和:6939

約数の個数: 24

約数和(自身を含む): 271421640

約数和(自身を除く): 142311860

約数列:

[1, 2, 4, 5, 10, 20, 1109, 2218, 4436, 5545, 5821, 11090, 11642, 22180, 23284, 29105, 58210, 116420, 6455489, 12910978, 25821956, 32277445, 64554890, 129109780]

約数ペア:

[(1, 129109780), (2, 64554890), (4, 32277445), (5, 25821956), (10, 12910978), (20, 6455489), (1109, 116420), (2218, 58210), (4436, 29105), (5545, 23284), (5821, 22180), (11090, 11642)]