144736720

素因数分解:

$2^4\times 5^1\times {\mathrm{1809209}}^1$

素因数の和:1809222

約数の個数: 20

約数和(自身を含む): 336513060

約数和(自身を除く): 191776340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1809209, 3618418, 7236836, 9046045, 14473672, 18092090, 28947344, 36184180, 72368360, 144736720]

約数ペア:

[(1, 144736720), (2, 72368360), (4, 36184180), (5, 28947344), (8, 18092090), (10, 14473672), (16, 9046045), (20, 7236836), (40, 3618418), (80, 1809209)]