18104780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{22079}}^1$

素因数の和:22129

約数の個数: 24

約数和(自身を含む): 38949120

約数和(自身を除く): 20844340

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 22079, 44158, 88316, 110395, 220790, 441580, 905239, 1810478, 3620956, 4526195, 9052390, 18104780]

約数ペア:

[(1, 18104780), (2, 9052390), (4, 4526195), (5, 3620956), (10, 1810478), (20, 905239), (41, 441580), (82, 220790), (164, 110395), (205, 88316), (410, 44158), (820, 22079)]