205128880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{21191}}^1$

素因数の和:21226

約数の個数: 60

約数和(自身を含む): 524247696

約数和(自身を除く): 319118816

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1936, 2420, 4840, 9680, 21191, 42382, 84764, 105955, 169528, 211910, 233101, 339056, 423820, 466202, 847640, 932404, 1165505, 1695280, 1864808, 2331010, 2564111, 3729616, 4662020, 5128222, 9324040, 10256444, 12820555, 18648080, 20512888, 25641110, 41025776, 51282220, 102564440, 205128880]

約数ペア:

[(1, 205128880), (2, 102564440), (4, 51282220), (5, 41025776), (8, 25641110), (10, 20512888), (11, 18648080), (16, 12820555), (20, 10256444), (22, 9324040), (40, 5128222), (44, 4662020), (55, 3729616), (80, 2564111), (88, 2331010), (110, 1864808), (121, 1695280), (176, 1165505), (220, 932404), (242, 847640), (440, 466202), (484, 423820), (605, 339056), (880, 233101), (968, 211910), (1210, 169528), (1936, 105955), (2420, 84764), (4840, 42382), (9680, 21191)]