8712880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9901}}^1$

素因数の和:9925

約数の個数: 40

約数和(自身を含む): 22101264

約数和(自身を除く): 13388384

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 9901, 19802, 39604, 49505, 79208, 99010, 108911, 158416, 198020, 217822, 396040, 435644, 544555, 792080, 871288, 1089110, 1742576, 2178220, 4356440, 8712880]

約数ペア:

[(1, 8712880), (2, 4356440), (4, 2178220), (5, 1742576), (8, 1089110), (10, 871288), (11, 792080), (16, 544555), (20, 435644), (22, 396040), (40, 217822), (44, 198020), (55, 158416), (80, 108911), (88, 99010), (110, 79208), (176, 49505), (220, 39604), (440, 19802), (880, 9901)]