80881360

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{439}}^1$

素因数の和:513

約数の個数: 120

約数和(自身を含む): 223914240

約数和(自身を除く): 143032880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 49, 56, 70, 80, 94, 98, 112, 140, 188, 196, 235, 245, 280, 329, 376, 392, 439, 470, 490, 560, 658, 752, 784, 878, 940, 980, 1316, 1645, 1756, 1880, 1960, 2195, 2303, 2632, 3073, 3290, 3512, 3760, 3920, 4390, 4606, 5264, 6146, 6580, 7024, 8780, 9212, 11515, 12292, 13160, 15365, 17560, 18424, 20633, 21511, 23030, 24584, 26320, 30730, 35120, 36848, 41266, 43022, 46060, 49168, 61460, 82532, 86044, 92120, 103165, 107555, 122920, 144431, 165064, 172088, 184240, 206330, 215110, 245840, 288862, 330128, 344176, 412660, 430220, 577724, 722155, 825320, 860440, 1011017, 1155448, 1444310, 1650640, 1720880, 2022034, 2310896, 2888620, 4044068, 5055085, 5777240, 8088136, 10110170, 11554480, 16176272, 20220340, 40440680, 80881360]

約数ペア:

[(1, 80881360), (2, 40440680), (4, 20220340), (5, 16176272), (7, 11554480), (8, 10110170), (10, 8088136), (14, 5777240), (16, 5055085), (20, 4044068), (28, 2888620), (35, 2310896), (40, 2022034), (47, 1720880), (49, 1650640), (56, 1444310), (70, 1155448), (80, 1011017), (94, 860440), (98, 825320), (112, 722155), (140, 577724), (188, 430220), (196, 412660), (235, 344176), (245, 330128), (280, 288862), (329, 245840), (376, 215110), (392, 206330), (439, 184240), (470, 172088), (490, 165064), (560, 144431), (658, 122920), (752, 107555), (784, 103165), (878, 92120), (940, 86044), (980, 82532), (1316, 61460), (1645, 49168), (1756, 46060), (1880, 43022), (1960, 41266), (2195, 36848), (2303, 35120), (2632, 30730), (3073, 26320), (3290, 24584), (3512, 23030), (3760, 21511), (3920, 20633), (4390, 18424), (4606, 17560), (5264, 15365), (6146, 13160), (6580, 12292), (7024, 11515), (8780, 9212)]