18178480

素因数分解:

$2^4\times 5^1\times {\mathrm{227231}}^1$

素因数の和:227244

約数の個数: 20

約数和(自身を含む): 42265152

約数和(自身を除く): 24086672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227231, 454462, 908924, 1136155, 1817848, 2272310, 3635696, 4544620, 9089240, 18178480]

約数ペア:

[(1, 18178480), (2, 9089240), (4, 4544620), (5, 3635696), (8, 2272310), (10, 1817848), (16, 1136155), (20, 908924), (40, 454462), (80, 227231)]