131047480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79907}}^1$

素因数の和:79959

約数の個数: 32

約数和(自身を含む): 302052240

約数和(自身を除く): 171004760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 79907, 159814, 319628, 399535, 639256, 799070, 1598140, 3196280, 3276187, 6552374, 13104748, 16380935, 26209496, 32761870, 65523740, 131047480]

約数ペア:

[(1, 131047480), (2, 65523740), (4, 32761870), (5, 26209496), (8, 16380935), (10, 13104748), (20, 6552374), (40, 3276187), (41, 3196280), (82, 1598140), (164, 799070), (205, 639256), (328, 399535), (410, 319628), (820, 159814), (1640, 79907)]