320176720

素因数分解:

$2^4\times 5^1\times {\mathrm{4002209}}^1$

素因数の和:4002222

約数の個数: 20

約数和(自身を含む): 744411060

約数和(自身を除く): 424234340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4002209, 8004418, 16008836, 20011045, 32017672, 40022090, 64035344, 80044180, 160088360, 320176720]

約数ペア:

[(1, 320176720), (2, 160088360), (4, 80044180), (5, 64035344), (8, 40022090), (10, 32017672), (16, 20011045), (20, 16008836), (40, 8004418), (80, 4002209)]