8131280

素因数分解:

$2^4\times 5^1\times {\mathrm{101641}}^1$

素因数の和:101654

約数の個数: 20

約数和(自身を含む): 18905412

約数和(自身を除く): 10774132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101641, 203282, 406564, 508205, 813128, 1016410, 1626256, 2032820, 4065640, 8131280]

約数ペア:

[(1, 8131280), (2, 4065640), (4, 2032820), (5, 1626256), (8, 1016410), (10, 813128), (16, 508205), (20, 406564), (40, 203282), (80, 101641)]