87487480

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{20441}}^1$

素因数の和:20559

約数の個数: 32

約数和(自身を含む): 198696240

約数和(自身を除く): 111208760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 20441, 40882, 81764, 102205, 163528, 204410, 408820, 817640, 2187187, 4374374, 8748748, 10935935, 17497496, 21871870, 43743740, 87487480]

約数ペア:

[(1, 87487480), (2, 43743740), (4, 21871870), (5, 17497496), (8, 10935935), (10, 8748748), (20, 4374374), (40, 2187187), (107, 817640), (214, 408820), (428, 204410), (535, 163528), (856, 102205), (1070, 81764), (2140, 40882), (4280, 20441)]