81414160

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{9511}}^1$

素因数の和:9631

約数の個数: 40

約数和(自身を含む): 191077056

約数和(自身を除く): 109662896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 4280, 8560, 9511, 19022, 38044, 47555, 76088, 95110, 152176, 190220, 380440, 760880, 1017677, 2035354, 4070708, 5088385, 8141416, 10176770, 16282832, 20353540, 40707080, 81414160]

約数ペア:

[(1, 81414160), (2, 40707080), (4, 20353540), (5, 16282832), (8, 10176770), (10, 8141416), (16, 5088385), (20, 4070708), (40, 2035354), (80, 1017677), (107, 760880), (214, 380440), (428, 190220), (535, 152176), (856, 95110), (1070, 76088), (1712, 47555), (2140, 38044), (4280, 19022), (8560, 9511)]