69701780

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{8521}}^1$

素因数の和:8939

約数の個数: 24

約数和(自身を含む): 146748840

約数和(自身を除く): 77047060

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 8521, 17042, 34084, 42605, 85210, 170420, 3485089, 6970178, 13940356, 17425445, 34850890, 69701780]

約数ペア:

[(1, 69701780), (2, 34850890), (4, 17425445), (5, 13940356), (10, 6970178), (20, 3485089), (409, 170420), (818, 85210), (1636, 42605), (2045, 34084), (4090, 17042), (8180, 8521)]