257496080

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{68483}}^1$

素因数の和:68543

約数の個数: 40

約数和(自身を含む): 611425152

約数和(自身を除く): 353929072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 68483, 136966, 273932, 342415, 547864, 684830, 1095728, 1369660, 2739320, 3218701, 5478640, 6437402, 12874804, 16093505, 25749608, 32187010, 51499216, 64374020, 128748040, 257496080]

約数ペア:

[(1, 257496080), (2, 128748040), (4, 64374020), (5, 51499216), (8, 32187010), (10, 25749608), (16, 16093505), (20, 12874804), (40, 6437402), (47, 5478640), (80, 3218701), (94, 2739320), (188, 1369660), (235, 1095728), (376, 684830), (470, 547864), (752, 342415), (940, 273932), (1880, 136966), (3760, 68483)]