25132840

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{6221}}^1$

素因数の和:6333

約数の個数: 32

約数和(自身を含む): 57117960

約数和(自身を除く): 31985120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 6221, 12442, 24884, 31105, 49768, 62210, 124420, 248840, 628321, 1256642, 2513284, 3141605, 5026568, 6283210, 12566420, 25132840]

約数ペア:

[(1, 25132840), (2, 12566420), (4, 6283210), (5, 5026568), (8, 3141605), (10, 2513284), (20, 1256642), (40, 628321), (101, 248840), (202, 124420), (404, 62210), (505, 49768), (808, 31105), (1010, 24884), (2020, 12442), (4040, 6221)]