84123140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{247421}}^1$

素因数の和:247447

約数の個数: 24

約数和(自身を含む): 187051032

約数和(自身を除く): 102927892

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 247421, 494842, 989684, 1237105, 2474210, 4206157, 4948420, 8412314, 16824628, 21030785, 42061570, 84123140]

約数ペア:

[(1, 84123140), (2, 42061570), (4, 21030785), (5, 16824628), (10, 8412314), (17, 4948420), (20, 4206157), (34, 2474210), (68, 1237105), (85, 989684), (170, 494842), (340, 247421)]