15826780

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 34473600

約数和(自身を除く): 18646820

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 113, 149, 188, 226, 235, 298, 452, 470, 565, 596, 745, 940, 1130, 1490, 2260, 2980, 5311, 7003, 10622, 14006, 16837, 21244, 26555, 28012, 33674, 35015, 53110, 67348, 70030, 84185, 106220, 140060, 168370, 336740, 791339, 1582678, 3165356, 3956695, 7913390, 15826780]

約数ペア:

[(1, 15826780), (2, 7913390), (4, 3956695), (5, 3165356), (10, 1582678), (20, 791339), (47, 336740), (94, 168370), (113, 140060), (149, 106220), (188, 84185), (226, 70030), (235, 67348), (298, 53110), (452, 35015), (470, 33674), (565, 28012), (596, 26555), (745, 21244), (940, 16837), (1130, 14006), (1490, 10622), (2260, 7003), (2980, 5311)]