1285128080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1\times {\mathrm{1319}}^1$

素因数の和:1992

約数の個数: 80

約数和(自身を含む): 3152476800

約数和(自身を除く): 1867348720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 641, 760, 1282, 1319, 1520, 2564, 2638, 3205, 5128, 5276, 6410, 6595, 10256, 10552, 12179, 12820, 13190, 21104, 24358, 25061, 25640, 26380, 48716, 50122, 51280, 52760, 60895, 97432, 100244, 105520, 121790, 125305, 194864, 200488, 243580, 250610, 400976, 487160, 501220, 845479, 974320, 1002440, 1690958, 2004880, 3381916, 4227395, 6763832, 8454790, 13527664, 16064101, 16909580, 32128202, 33819160, 64256404, 67638320, 80320505, 128512808, 160641010, 257025616, 321282020, 642564040, 1285128080]

約数ペア:

[(1, 1285128080), (2, 642564040), (4, 321282020), (5, 257025616), (8, 160641010), (10, 128512808), (16, 80320505), (19, 67638320), (20, 64256404), (38, 33819160), (40, 32128202), (76, 16909580), (80, 16064101), (95, 13527664), (152, 8454790), (190, 6763832), (304, 4227395), (380, 3381916), (641, 2004880), (760, 1690958), (1282, 1002440), (1319, 974320), (1520, 845479), (2564, 501220), (2638, 487160), (3205, 400976), (5128, 250610), (5276, 243580), (6410, 200488), (6595, 194864), (10256, 125305), (10552, 121790), (12179, 105520), (12820, 100244), (13190, 97432), (21104, 60895), (24358, 52760), (25061, 51280), (25640, 50122), (26380, 48716)]