678755812

素因数分解:

$2^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{140123}}^1$

素因数の和:140307

約数の個数: 24

約数和(自身を含む): 1365368256

約数和(自身を除く): 686612444

約数列:

[1, 2, 4, 7, 14, 28, 173, 346, 692, 1211, 2422, 4844, 140123, 280246, 560492, 980861, 1961722, 3923444, 24241279, 48482558, 96965116, 169688953, 339377906, 678755812]

約数ペア:

[(1, 678755812), (2, 339377906), (4, 169688953), (7, 96965116), (14, 48482558), (28, 24241279), (173, 3923444), (346, 1961722), (692, 980861), (1211, 560492), (2422, 280246), (4844, 140123)]