20096560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{557}}^1$

素因数の和:622

約数の個数: 80

約数和(自身を含む): 52309152

約数和(自身を除く): 32212592

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 41, 44, 55, 80, 82, 88, 110, 164, 176, 205, 220, 328, 410, 440, 451, 557, 656, 820, 880, 902, 1114, 1640, 1804, 2228, 2255, 2785, 3280, 3608, 4456, 4510, 5570, 6127, 7216, 8912, 9020, 11140, 12254, 18040, 22280, 22837, 24508, 30635, 36080, 44560, 45674, 49016, 61270, 91348, 98032, 114185, 122540, 182696, 228370, 245080, 251207, 365392, 456740, 490160, 502414, 913480, 1004828, 1256035, 1826960, 2009656, 2512070, 4019312, 5024140, 10048280, 20096560]

約数ペア:

[(1, 20096560), (2, 10048280), (4, 5024140), (5, 4019312), (8, 2512070), (10, 2009656), (11, 1826960), (16, 1256035), (20, 1004828), (22, 913480), (40, 502414), (41, 490160), (44, 456740), (55, 365392), (80, 251207), (82, 245080), (88, 228370), (110, 182696), (164, 122540), (176, 114185), (205, 98032), (220, 91348), (328, 61270), (410, 49016), (440, 45674), (451, 44560), (557, 36080), (656, 30635), (820, 24508), (880, 22837), (902, 22280), (1114, 18040), (1640, 12254), (1804, 11140), (2228, 9020), (2255, 8912), (2785, 7216), (3280, 6127), (3608, 5570), (4456, 4510)]