25820920

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{2281}}^1$

素因数の和:2575

約数の個数: 32

約数和(自身を含む): 58327920

約数和(自身を除く): 32507000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2281, 2830, 4562, 5660, 9124, 11320, 11405, 18248, 22810, 45620, 91240, 645523, 1291046, 2582092, 3227615, 5164184, 6455230, 12910460, 25820920]

約数ペア:

[(1, 25820920), (2, 12910460), (4, 6455230), (5, 5164184), (8, 3227615), (10, 2582092), (20, 1291046), (40, 645523), (283, 91240), (566, 45620), (1132, 22810), (1415, 18248), (2264, 11405), (2281, 11320), (2830, 9124), (4562, 5660)]