157285780

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{9721}}^1$

素因数の和:10539

約数の個数: 24

約数和(自身を含む): 330742440

約数和(自身を除く): 173456660

約数列:

[1, 2, 4, 5, 10, 20, 809, 1618, 3236, 4045, 8090, 9721, 16180, 19442, 38884, 48605, 97210, 194420, 7864289, 15728578, 31457156, 39321445, 78642890, 157285780]

約数ペア:

[(1, 157285780), (2, 78642890), (4, 39321445), (5, 31457156), (10, 15728578), (20, 7864289), (809, 194420), (1618, 97210), (3236, 48605), (4045, 38884), (8090, 19442), (9721, 16180)]