51302480

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15641}}^1$

素因数の和:15695

約数の個数: 40

約数和(自身を含む): 122195304

約数和(自身を除く): 70892824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 15641, 31282, 62564, 78205, 125128, 156410, 250256, 312820, 625640, 641281, 1251280, 1282562, 2565124, 3206405, 5130248, 6412810, 10260496, 12825620, 25651240, 51302480]

約数ペア:

[(1, 51302480), (2, 25651240), (4, 12825620), (5, 10260496), (8, 6412810), (10, 5130248), (16, 3206405), (20, 2565124), (40, 1282562), (41, 1251280), (80, 641281), (82, 625640), (164, 312820), (205, 250256), (328, 156410), (410, 125128), (656, 78205), (820, 62564), (1640, 31282), (3280, 15641)]