51020720

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{5851}}^1$

素因数の和:5973

約数の個数: 40

約数和(自身を含む): 119731920

約数和(自身を除く): 68711200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 5851, 8720, 11702, 23404, 29255, 46808, 58510, 93616, 117020, 234040, 468080, 637759, 1275518, 2551036, 3188795, 5102072, 6377590, 10204144, 12755180, 25510360, 51020720]

約数ペア:

[(1, 51020720), (2, 25510360), (4, 12755180), (5, 10204144), (8, 6377590), (10, 5102072), (16, 3188795), (20, 2551036), (40, 1275518), (80, 637759), (109, 468080), (218, 234040), (436, 117020), (545, 93616), (872, 58510), (1090, 46808), (1744, 29255), (2180, 23404), (4360, 11702), (5851, 8720)]