78716140

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{9623}}^1$

素因数の和:10041

約数の個数: 24

約数和(自身を含む): 165725280

約数和(自身を除く): 87009140

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 9623, 19246, 38492, 48115, 96230, 192460, 3935807, 7871614, 15743228, 19679035, 39358070, 78716140]

約数ペア:

[(1, 78716140), (2, 39358070), (4, 19679035), (5, 15743228), (10, 7871614), (20, 3935807), (409, 192460), (818, 96230), (1636, 48115), (2045, 38492), (4090, 19246), (8180, 9623)]