198969520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{587}}^1$

素因数の和:842

約数の個数: 80

約数和(自身を含む): 489968640

約数和(自身を除く): 290999120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 223, 304, 380, 446, 587, 760, 892, 1115, 1174, 1520, 1784, 2230, 2348, 2935, 3568, 4237, 4460, 4696, 5870, 8474, 8920, 9392, 11153, 11740, 16948, 17840, 21185, 22306, 23480, 33896, 42370, 44612, 46960, 55765, 67792, 84740, 89224, 111530, 130901, 169480, 178448, 223060, 261802, 338960, 446120, 523604, 654505, 892240, 1047208, 1309010, 2094416, 2487119, 2618020, 4974238, 5236040, 9948476, 10472080, 12435595, 19896952, 24871190, 39793904, 49742380, 99484760, 198969520]

約数ペア:

[(1, 198969520), (2, 99484760), (4, 49742380), (5, 39793904), (8, 24871190), (10, 19896952), (16, 12435595), (19, 10472080), (20, 9948476), (38, 5236040), (40, 4974238), (76, 2618020), (80, 2487119), (95, 2094416), (152, 1309010), (190, 1047208), (223, 892240), (304, 654505), (380, 523604), (446, 446120), (587, 338960), (760, 261802), (892, 223060), (1115, 178448), (1174, 169480), (1520, 130901), (1784, 111530), (2230, 89224), (2348, 84740), (2935, 67792), (3568, 55765), (4237, 46960), (4460, 44612), (4696, 42370), (5870, 33896), (8474, 23480), (8920, 22306), (9392, 21185), (11153, 17840), (11740, 16948)]