393950140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{480427}}^1$

素因数の和:480477

約数の個数: 24

約数和(自身を含む): 847474992

約数和(自身を除く): 453524852

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 480427, 960854, 1921708, 2402135, 4804270, 9608540, 19697507, 39395014, 78790028, 98487535, 196975070, 393950140]

約数ペア:

[(1, 393950140), (2, 196975070), (4, 98487535), (5, 78790028), (10, 39395014), (20, 19697507), (41, 9608540), (82, 4804270), (164, 2402135), (205, 1921708), (410, 960854), (820, 480427)]