207615280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{997}}^1$

素因数の和:1166

約数の個数: 80

約数和(自身を含む): 512333280

約数和(自身を除く): 304718000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 137, 152, 190, 274, 304, 380, 548, 685, 760, 997, 1096, 1370, 1520, 1994, 2192, 2603, 2740, 3988, 4985, 5206, 5480, 7976, 9970, 10412, 10960, 13015, 15952, 18943, 19940, 20824, 26030, 37886, 39880, 41648, 52060, 75772, 79760, 94715, 104120, 136589, 151544, 189430, 208240, 273178, 303088, 378860, 546356, 682945, 757720, 1092712, 1365890, 1515440, 2185424, 2595191, 2731780, 5190382, 5463560, 10380764, 10927120, 12975955, 20761528, 25951910, 41523056, 51903820, 103807640, 207615280]

約数ペア:

[(1, 207615280), (2, 103807640), (4, 51903820), (5, 41523056), (8, 25951910), (10, 20761528), (16, 12975955), (19, 10927120), (20, 10380764), (38, 5463560), (40, 5190382), (76, 2731780), (80, 2595191), (95, 2185424), (137, 1515440), (152, 1365890), (190, 1092712), (274, 757720), (304, 682945), (380, 546356), (548, 378860), (685, 303088), (760, 273178), (997, 208240), (1096, 189430), (1370, 151544), (1520, 136589), (1994, 104120), (2192, 94715), (2603, 79760), (2740, 75772), (3988, 52060), (4985, 41648), (5206, 39880), (5480, 37886), (7976, 26030), (9970, 20824), (10412, 19940), (10960, 18943), (13015, 15952)]