2019553520

素因数分解:

$2^4\times 5^1\times {\mathrm{25244419}}^1$

素因数の和:25244432

約数の個数: 20

約数和(自身を含む): 4695462120

約数和(自身を除く): 2675908600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25244419, 50488838, 100977676, 126222095, 201955352, 252444190, 403910704, 504888380, 1009776760, 2019553520]

約数ペア:

[(1, 2019553520), (2, 1009776760), (4, 504888380), (5, 403910704), (8, 252444190), (10, 201955352), (16, 126222095), (20, 100977676), (40, 50488838), (80, 25244419)]