20157340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{143981}}^1$

素因数の和:143997

約数の個数: 24

約数和(自身を含む): 48377952

約数和(自身を除く): 28220612

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 143981, 287962, 575924, 719905, 1007867, 1439810, 2015734, 2879620, 4031468, 5039335, 10078670, 20157340]

約数ペア:

[(1, 20157340), (2, 10078670), (4, 5039335), (5, 4031468), (7, 2879620), (10, 2015734), (14, 1439810), (20, 1007867), (28, 719905), (35, 575924), (70, 287962), (140, 143981)]