77880796

素因数分解:

$2^2\times 7^2\times {\mathrm{397351}}^1$

素因数の和:397369

約数の個数: 18

約数和(自身を含む): 158543448

約数和(自身を除く): 80662652

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 397351, 794702, 1589404, 2781457, 5562914, 11125828, 19470199, 38940398, 77880796]

約数ペア:

[(1, 77880796), (2, 38940398), (4, 19470199), (7, 11125828), (14, 5562914), (28, 2781457), (49, 1589404), (98, 794702), (196, 397351)]