51712400

素因数分解:

$2^4\times 5^2\times {\mathrm{129281}}^1$

素因数の和:129299

約数の個数: 30

約数和(自身を含む): 124240002

約数和(自身を除く): 72527602

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 129281, 258562, 517124, 646405, 1034248, 1292810, 2068496, 2585620, 3232025, 5171240, 6464050, 10342480, 12928100, 25856200, 51712400]

約数ペア:

[(1, 51712400), (2, 25856200), (4, 12928100), (5, 10342480), (8, 6464050), (10, 5171240), (16, 3232025), (20, 2585620), (25, 2068496), (40, 1292810), (50, 1034248), (80, 646405), (100, 517124), (200, 258562), (400, 129281)]