68472020

素因数分解:

$2^2\times 5^1\times {\mathrm{1723}}^1\times {\mathrm{1987}}^1$

素因数の和:3719

約数の個数: 24

約数和(自身を含む): 143947104

約数和(自身を除く): 75475084

約数列:

[1, 2, 4, 5, 10, 20, 1723, 1987, 3446, 3974, 6892, 7948, 8615, 9935, 17230, 19870, 34460, 39740, 3423601, 6847202, 13694404, 17118005, 34236010, 68472020]

約数ペア:

[(1, 68472020), (2, 34236010), (4, 17118005), (5, 13694404), (10, 6847202), (20, 3423601), (1723, 39740), (1987, 34460), (3446, 19870), (3974, 17230), (6892, 9935), (7948, 8615)]