25651240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15641}}^1$

素因数の和:15693

約数の個数: 32

約数和(自身を含む): 59126760

約数和(自身を除く): 33475520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 15641, 31282, 62564, 78205, 125128, 156410, 312820, 625640, 641281, 1282562, 2565124, 3206405, 5130248, 6412810, 12825620, 25651240]

約数ペア:

[(1, 25651240), (2, 12825620), (4, 6412810), (5, 5130248), (8, 3206405), (10, 2565124), (20, 1282562), (40, 641281), (41, 625640), (82, 312820), (164, 156410), (205, 125128), (328, 78205), (410, 62564), (820, 31282), (1640, 15641)]