564140

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:497

約数の個数: 24

約数和(自身を含む): 1205232

約数和(自身を除く): 641092

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 421, 670, 842, 1340, 1684, 2105, 4210, 8420, 28207, 56414, 112828, 141035, 282070, 564140]

約数ペア:

[(1, 564140), (2, 282070), (4, 141035), (5, 112828), (10, 56414), (20, 28207), (67, 8420), (134, 4210), (268, 2105), (335, 1684), (421, 1340), (670, 842)]