54780280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31849}}^1$

素因数の和:31903

約数の個数: 32

約数和(自身を含む): 126126000

約数和(自身を除く): 71345720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 31849, 63698, 127396, 159245, 254792, 318490, 636980, 1273960, 1369507, 2739014, 5478028, 6847535, 10956056, 13695070, 27390140, 54780280]

約数ペア:

[(1, 54780280), (2, 27390140), (4, 13695070), (5, 10956056), (8, 6847535), (10, 5478028), (20, 2739014), (40, 1369507), (43, 1273960), (86, 636980), (172, 318490), (215, 254792), (344, 159245), (430, 127396), (860, 63698), (1720, 31849)]