64987840

素因数分解:

$2^6\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:242

約数の個数: 112

約数和(自身を含む): 164592000

約数和(自身を除く): 99604160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 47, 58, 64, 80, 94, 116, 145, 149, 160, 188, 232, 235, 290, 298, 320, 376, 464, 470, 580, 596, 745, 752, 928, 940, 1160, 1192, 1363, 1490, 1504, 1856, 1880, 2320, 2384, 2726, 2980, 3008, 3760, 4321, 4640, 4768, 5452, 5960, 6815, 7003, 7520, 8642, 9280, 9536, 10904, 11920, 13630, 14006, 15040, 17284, 21605, 21808, 23840, 27260, 28012, 34568, 35015, 43210, 43616, 47680, 54520, 56024, 69136, 70030, 86420, 87232, 109040, 112048, 138272, 140060, 172840, 203087, 218080, 224096, 276544, 280120, 345680, 406174, 436160, 448192, 560240, 691360, 812348, 1015435, 1120480, 1382720, 1624696, 2030870, 2240960, 3249392, 4061740, 6498784, 8123480, 12997568, 16246960, 32493920, 64987840]

約数ペア:

[(1, 64987840), (2, 32493920), (4, 16246960), (5, 12997568), (8, 8123480), (10, 6498784), (16, 4061740), (20, 3249392), (29, 2240960), (32, 2030870), (40, 1624696), (47, 1382720), (58, 1120480), (64, 1015435), (80, 812348), (94, 691360), (116, 560240), (145, 448192), (149, 436160), (160, 406174), (188, 345680), (232, 280120), (235, 276544), (290, 224096), (298, 218080), (320, 203087), (376, 172840), (464, 140060), (470, 138272), (580, 112048), (596, 109040), (745, 87232), (752, 86420), (928, 70030), (940, 69136), (1160, 56024), (1192, 54520), (1363, 47680), (1490, 43616), (1504, 43210), (1856, 35015), (1880, 34568), (2320, 28012), (2384, 27260), (2726, 23840), (2980, 21808), (3008, 21605), (3760, 17284), (4321, 15040), (4640, 14006), (4768, 13630), (5452, 11920), (5960, 10904), (6815, 9536), (7003, 9280), (7520, 8642)]