17811280

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{3323}}^1$

素因数の和:3403

約数の個数: 40

約数和(自身を含む): 42041952

約数和(自身を除く): 24230672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 3323, 5360, 6646, 13292, 16615, 26584, 33230, 53168, 66460, 132920, 222641, 265840, 445282, 890564, 1113205, 1781128, 2226410, 3562256, 4452820, 8905640, 17811280]

約数ペア:

[(1, 17811280), (2, 8905640), (4, 4452820), (5, 3562256), (8, 2226410), (10, 1781128), (16, 1113205), (20, 890564), (40, 445282), (67, 265840), (80, 222641), (134, 132920), (268, 66460), (335, 53168), (536, 33230), (670, 26584), (1072, 16615), (1340, 13292), (2680, 6646), (3323, 5360)]