12784580

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{6329}}^1$

素因数の和:6439

約数の個数: 24

約数和(自身を含む): 27117720

約数和(自身を除く): 14333140

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 6329, 12658, 25316, 31645, 63290, 126580, 639229, 1278458, 2556916, 3196145, 6392290, 12784580]

約数ペア:

[(1, 12784580), (2, 6392290), (4, 3196145), (5, 2556916), (10, 1278458), (20, 639229), (101, 126580), (202, 63290), (404, 31645), (505, 25316), (1010, 12658), (2020, 6329)]