26291201840

素因数分解:

$2^4\times 5^1\times {\mathrm{328640023}}^1$

素因数の和:328640036

約数の個数: 20

約数和(自身を含む): 61127044464

約数和(自身を除く): 34835842624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 328640023, 657280046, 1314560092, 1643200115, 2629120184, 3286400230, 5258240368, 6572800460, 13145600920, 26291201840]

約数ペア:

[(1, 26291201840), (2, 13145600920), (4, 6572800460), (5, 5258240368), (8, 3286400230), (10, 2629120184), (16, 1643200115), (20, 1314560092), (40, 657280046), (80, 328640023)]