51721090

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{1249}}^1$

素因数の和:1398

約数の個数: 32

約数和(自身を含む): 96390000

約数和(自身を除く): 44668910

約数列:

[1, 2, 5, 10, 41, 82, 101, 202, 205, 410, 505, 1010, 1249, 2498, 4141, 6245, 8282, 12490, 20705, 41410, 51209, 102418, 126149, 252298, 256045, 512090, 630745, 1261490, 5172109, 10344218, 25860545, 51721090]

約数ペア:

[(1, 51721090), (2, 25860545), (5, 10344218), (10, 5172109), (41, 1261490), (82, 630745), (101, 512090), (202, 256045), (205, 252298), (410, 126149), (505, 102418), (1010, 51209), (1249, 41410), (2498, 20705), (4141, 12490), (6245, 8282)]