78801604

素因数分解:

$2^2\times 7^2\times {\mathrm{402049}}^1$

素因数の和:402067

約数の個数: 18

約数和(自身を含む): 160417950

約数和(自身を除く): 81616346

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 402049, 804098, 1608196, 2814343, 5628686, 11257372, 19700401, 39400802, 78801604]

約数ペア:

[(1, 78801604), (2, 39400802), (4, 19700401), (7, 11257372), (14, 5628686), (28, 2814343), (49, 1608196), (98, 804098), (196, 402049)]