13865240

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1381}}^1$

素因数の和:1643

約数の個数: 32

約数和(自身を含む): 31343760

約数和(自身を除く): 17478520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 1381, 2008, 2510, 2762, 5020, 5524, 6905, 10040, 11048, 13810, 27620, 55240, 346631, 693262, 1386524, 1733155, 2773048, 3466310, 6932620, 13865240]

約数ペア:

[(1, 13865240), (2, 6932620), (4, 3466310), (5, 2773048), (8, 1733155), (10, 1386524), (20, 693262), (40, 346631), (251, 55240), (502, 27620), (1004, 13810), (1255, 11048), (1381, 10040), (2008, 6905), (2510, 5524), (2762, 5020)]