20142320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{487}}^1$

素因数の和:558

約数の個数: 80

約数和(自身を含む): 52282368

約数和(自身を除く): 32140048

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 47, 55, 80, 88, 94, 110, 176, 188, 220, 235, 376, 440, 470, 487, 517, 752, 880, 940, 974, 1034, 1880, 1948, 2068, 2435, 2585, 3760, 3896, 4136, 4870, 5170, 5357, 7792, 8272, 9740, 10340, 10714, 19480, 20680, 21428, 22889, 26785, 38960, 41360, 42856, 45778, 53570, 85712, 91556, 107140, 114445, 183112, 214280, 228890, 251779, 366224, 428560, 457780, 503558, 915560, 1007116, 1258895, 1831120, 2014232, 2517790, 4028464, 5035580, 10071160, 20142320]

約数ペア:

[(1, 20142320), (2, 10071160), (4, 5035580), (5, 4028464), (8, 2517790), (10, 2014232), (11, 1831120), (16, 1258895), (20, 1007116), (22, 915560), (40, 503558), (44, 457780), (47, 428560), (55, 366224), (80, 251779), (88, 228890), (94, 214280), (110, 183112), (176, 114445), (188, 107140), (220, 91556), (235, 85712), (376, 53570), (440, 45778), (470, 42856), (487, 41360), (517, 38960), (752, 26785), (880, 22889), (940, 21428), (974, 20680), (1034, 19480), (1880, 10714), (1948, 10340), (2068, 9740), (2435, 8272), (2585, 7792), (3760, 5357), (3896, 5170), (4136, 4870)]