26853620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{18911}}^1$

素因数の和:18991

約数の個数: 24

約数和(自身を含む): 57189888

約数和(自身を除く): 30336268

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 18911, 37822, 75644, 94555, 189110, 378220, 1342681, 2685362, 5370724, 6713405, 13426810, 26853620]

約数ペア:

[(1, 26853620), (2, 13426810), (4, 6713405), (5, 5370724), (10, 2685362), (20, 1342681), (71, 378220), (142, 189110), (284, 94555), (355, 75644), (710, 37822), (1420, 18911)]