1640984320

素因数分解:

$2^8\times 5^1\times {\mathrm{47}}^1\times {\mathrm{27277}}^1$

素因数の和:27345

約数の個数: 72

約数和(自身を含む): 4014448704

約数和(自身を除く): 2373464384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 128, 160, 188, 235, 256, 320, 376, 470, 640, 752, 940, 1280, 1504, 1880, 3008, 3760, 6016, 7520, 12032, 15040, 27277, 30080, 54554, 60160, 109108, 136385, 218216, 272770, 436432, 545540, 872864, 1091080, 1282019, 1745728, 2182160, 2564038, 3491456, 4364320, 5128076, 6410095, 6982912, 8728640, 10256152, 12820190, 17457280, 20512304, 25640380, 34914560, 41024608, 51280760, 82049216, 102561520, 164098432, 205123040, 328196864, 410246080, 820492160, 1640984320]

約数ペア:

[(1, 1640984320), (2, 820492160), (4, 410246080), (5, 328196864), (8, 205123040), (10, 164098432), (16, 102561520), (20, 82049216), (32, 51280760), (40, 41024608), (47, 34914560), (64, 25640380), (80, 20512304), (94, 17457280), (128, 12820190), (160, 10256152), (188, 8728640), (235, 6982912), (256, 6410095), (320, 5128076), (376, 4364320), (470, 3491456), (640, 2564038), (752, 2182160), (940, 1745728), (1280, 1282019), (1504, 1091080), (1880, 872864), (3008, 545540), (3760, 436432), (6016, 272770), (7520, 218216), (12032, 136385), (15040, 109108), (27277, 60160), (30080, 54554)]