25817080

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4111}}^1$

素因数の和:4279

約数の個数: 32

約数和(自身を含む): 58472640

約数和(自身を除く): 32655560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 4111, 6280, 8222, 16444, 20555, 32888, 41110, 82220, 164440, 645427, 1290854, 2581708, 3227135, 5163416, 6454270, 12908540, 25817080]

約数ペア:

[(1, 25817080), (2, 12908540), (4, 6454270), (5, 5163416), (8, 3227135), (10, 2581708), (20, 1290854), (40, 645427), (157, 164440), (314, 82220), (628, 41110), (785, 32888), (1256, 20555), (1570, 16444), (3140, 8222), (4111, 6280)]