205478640

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{379}}^1$

素因数の和:652

約数の個数: 160

約数和(自身を含む): 712454400

約数和(自身を除く): 506975760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 251, 270, 360, 379, 432, 502, 540, 720, 753, 758, 1004, 1080, 1137, 1255, 1506, 1516, 1895, 2008, 2160, 2259, 2274, 2510, 3012, 3032, 3411, 3765, 3790, 4016, 4518, 4548, 5020, 5685, 6024, 6064, 6777, 6822, 7530, 7580, 9036, 9096, 10040, 10233, 11295, 11370, 12048, 13554, 13644, 15060, 15160, 17055, 18072, 18192, 20080, 20466, 22590, 22740, 27108, 27288, 30120, 30320, 33885, 34110, 36144, 40932, 45180, 45480, 51165, 54216, 54576, 60240, 67770, 68220, 81864, 90360, 90960, 95129, 102330, 108432, 135540, 136440, 163728, 180720, 190258, 204660, 271080, 272880, 285387, 380516, 409320, 475645, 542160, 570774, 761032, 818640, 856161, 951290, 1141548, 1426935, 1522064, 1712322, 1902580, 2283096, 2568483, 2853870, 3424644, 3805160, 4280805, 4566192, 5136966, 5707740, 6849288, 7610320, 8561610, 10273932, 11415480, 12842415, 13698576, 17123220, 20547864, 22830960, 25684830, 34246440, 41095728, 51369660, 68492880, 102739320, 205478640]

約数ペア:

[(1, 205478640), (2, 102739320), (3, 68492880), (4, 51369660), (5, 41095728), (6, 34246440), (8, 25684830), (9, 22830960), (10, 20547864), (12, 17123220), (15, 13698576), (16, 12842415), (18, 11415480), (20, 10273932), (24, 8561610), (27, 7610320), (30, 6849288), (36, 5707740), (40, 5136966), (45, 4566192), (48, 4280805), (54, 3805160), (60, 3424644), (72, 2853870), (80, 2568483), (90, 2283096), (108, 1902580), (120, 1712322), (135, 1522064), (144, 1426935), (180, 1141548), (216, 951290), (240, 856161), (251, 818640), (270, 761032), (360, 570774), (379, 542160), (432, 475645), (502, 409320), (540, 380516), (720, 285387), (753, 272880), (758, 271080), (1004, 204660), (1080, 190258), (1137, 180720), (1255, 163728), (1506, 136440), (1516, 135540), (1895, 108432), (2008, 102330), (2160, 95129), (2259, 90960), (2274, 90360), (2510, 81864), (3012, 68220), (3032, 67770), (3411, 60240), (3765, 54576), (3790, 54216), (4016, 51165), (4518, 45480), (4548, 45180), (5020, 40932), (5685, 36144), (6024, 34110), (6064, 33885), (6777, 30320), (6822, 30120), (7530, 27288), (7580, 27108), (9036, 22740), (9096, 22590), (10040, 20466), (10233, 20080), (11295, 18192), (11370, 18072), (12048, 17055), (13554, 15160), (13644, 15060)]