3988420

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{4243}}^1$

素因数の和:4299

約数の個数: 24

約数和(自身を含む): 8555904

約数和(自身を除く): 4567484

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 4243, 8486, 16972, 21215, 42430, 84860, 199421, 398842, 797684, 997105, 1994210, 3988420]

約数ペア:

[(1, 3988420), (2, 1994210), (4, 997105), (5, 797684), (10, 398842), (20, 199421), (47, 84860), (94, 42430), (188, 21215), (235, 16972), (470, 8486), (940, 4243)]