556840

素因数分解:

$2^3\times 5^1\times {\mathrm{13921}}^1$

素因数の和:13932

約数の個数: 16

約数和(自身を含む): 1252980

約数和(自身を除く): 696140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 13921, 27842, 55684, 69605, 111368, 139210, 278420, 556840]

約数ペア:

[(1, 556840), (2, 278420), (4, 139210), (5, 111368), (8, 69605), (10, 55684), (20, 27842), (40, 13921)]