42280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{151}}^1$

素因数の和:169

約数の個数: 32

約数和(自身を含む): 109440

約数和(自身を除く): 67160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 151, 280, 302, 604, 755, 1057, 1208, 1510, 2114, 3020, 4228, 5285, 6040, 8456, 10570, 21140, 42280]

約数ペア:

[(1, 42280), (2, 21140), (4, 10570), (5, 8456), (7, 6040), (8, 5285), (10, 4228), (14, 3020), (20, 2114), (28, 1510), (35, 1208), (40, 1057), (56, 755), (70, 604), (140, 302), (151, 280)]