66446140

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{8123}}^1$

素因数の和:8541

約数の個数: 24

約数和(自身を含む): 139895280

約数和(自身を除く): 73449140

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8123, 8180, 16246, 32492, 40615, 81230, 162460, 3322307, 6644614, 13289228, 16611535, 33223070, 66446140]

約数ペア:

[(1, 66446140), (2, 33223070), (4, 16611535), (5, 13289228), (10, 6644614), (20, 3322307), (409, 162460), (818, 81230), (1636, 40615), (2045, 32492), (4090, 16246), (8123, 8180)]