28268420

素因数分解:

$2^2\times 5^1\times {\mathrm{853}}^1\times {\mathrm{1657}}^1$

素因数の和:2519

約数の個数: 24

約数和(自身を含む): 59469144

約数和(自身を除く): 31200724

約数列:

[1, 2, 4, 5, 10, 20, 853, 1657, 1706, 3314, 3412, 4265, 6628, 8285, 8530, 16570, 17060, 33140, 1413421, 2826842, 5653684, 7067105, 14134210, 28268420]

約数ペア:

[(1, 28268420), (2, 14134210), (4, 7067105), (5, 5653684), (10, 2826842), (20, 1413421), (853, 33140), (1657, 17060), (1706, 16570), (3314, 8530), (3412, 8285), (4265, 6628)]