78212428

素因数分解:

$2^2\times 7^2\times {\mathrm{399043}}^1$

素因数の和:399061

約数の個数: 18

約数和(自身を含む): 159218556

約数和(自身を除く): 81006128

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 399043, 798086, 1596172, 2793301, 5586602, 11173204, 19553107, 39106214, 78212428]

約数ペア:

[(1, 78212428), (2, 39106214), (4, 19553107), (7, 11173204), (14, 5586602), (28, 2793301), (49, 1596172), (98, 798086), (196, 399043)]