20880790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{941}}^1$

素因数の和:1272

約数の個数: 32

約数和(自身を含む): 43136064

約数和(自身を除く): 22255274

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 317, 634, 941, 1585, 1882, 2219, 3170, 4438, 4705, 6587, 9410, 11095, 13174, 22190, 32935, 65870, 298297, 596594, 1491485, 2088079, 2982970, 4176158, 10440395, 20880790]

約数ペア:

[(1, 20880790), (2, 10440395), (5, 4176158), (7, 2982970), (10, 2088079), (14, 1491485), (35, 596594), (70, 298297), (317, 65870), (634, 32935), (941, 22190), (1585, 13174), (1882, 11095), (2219, 9410), (3170, 6587), (4438, 4705)]