31401640

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{16703}}^1$

素因数の和:16761

約数の個数: 32

約数和(自身を含む): 72161280

約数和(自身を除く): 40759640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 16703, 33406, 66812, 83515, 133624, 167030, 334060, 668120, 785041, 1570082, 3140164, 3925205, 6280328, 7850410, 15700820, 31401640]

約数ペア:

[(1, 31401640), (2, 15700820), (4, 7850410), (5, 6280328), (8, 3925205), (10, 3140164), (20, 1570082), (40, 785041), (47, 668120), (94, 334060), (188, 167030), (235, 133624), (376, 83515), (470, 66812), (940, 33406), (1880, 16703)]