26040440

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1279}}^1$

素因数の和:1799

約数の個数: 32

約数和(自身を含む): 58752000

約数和(自身を除く): 32711560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 1279, 2036, 2545, 2558, 4072, 5090, 5116, 6395, 10180, 10232, 12790, 20360, 25580, 51160, 651011, 1302022, 2604044, 3255055, 5208088, 6510110, 13020220, 26040440]

約数ペア:

[(1, 26040440), (2, 13020220), (4, 6510110), (5, 5208088), (8, 3255055), (10, 2604044), (20, 1302022), (40, 651011), (509, 51160), (1018, 25580), (1279, 20360), (2036, 12790), (2545, 10232), (2558, 10180), (4072, 6395), (5090, 5116)]