157021720

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{22691}}^1$

素因数の和:22875

約数の個数: 32

約数和(自身を含む): 355356720

約数和(自身を除く): 198335000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 22691, 45382, 90764, 113455, 181528, 226910, 453820, 907640, 3925543, 7851086, 15702172, 19627715, 31404344, 39255430, 78510860, 157021720]

約数ペア:

[(1, 157021720), (2, 78510860), (4, 39255430), (5, 31404344), (8, 19627715), (10, 15702172), (20, 7851086), (40, 3925543), (173, 907640), (346, 453820), (692, 226910), (865, 181528), (1384, 113455), (1730, 90764), (3460, 45382), (6920, 22691)]