20796097520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{502807}}^1$

素因数の和:502878

約数の個数: 80

約数和(自身を含む): 53868837888

約数和(自身を除く): 33072740368

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, 517, 752, 880, 940, 1034, 1880, 2068, 2585, 3760, 4136, 5170, 8272, 10340, 20680, 41360, 502807, 1005614, 2011228, 2514035, 4022456, 5028070, 5530877, 8044912, 10056140, 11061754, 20112280, 22123508, 23631929, 27654385, 40224560, 44247016, 47263858, 55308770, 88494032, 94527716, 110617540, 118159645, 189055432, 221235080, 236319290, 259951219, 378110864, 442470160, 472638580, 519902438, 945277160, 1039804876, 1299756095, 1890554320, 2079609752, 2599512190, 4159219504, 5199024380, 10398048760, 20796097520]

約数ペア:

[(1, 20796097520), (2, 10398048760), (4, 5199024380), (5, 4159219504), (8, 2599512190), (10, 2079609752), (11, 1890554320), (16, 1299756095), (20, 1039804876), (22, 945277160), (40, 519902438), (44, 472638580), (47, 442470160), (55, 378110864), (80, 259951219), (88, 236319290), (94, 221235080), (110, 189055432), (176, 118159645), (188, 110617540), (220, 94527716), (235, 88494032), (376, 55308770), (440, 47263858), (470, 44247016), (517, 40224560), (752, 27654385), (880, 23631929), (940, 22123508), (1034, 20112280), (1880, 11061754), (2068, 10056140), (2585, 8044912), (3760, 5530877), (4136, 5028070), (5170, 4022456), (8272, 2514035), (10340, 2011228), (20680, 1005614), (41360, 502807)]