201905720

素因数分解:

$2^3\times 5^1\times {\mathrm{5047643}}^1$

素因数の和:5047654

約数の個数: 16

約数和(自身を含む): 454287960

約数和(自身を除く): 252382240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5047643, 10095286, 20190572, 25238215, 40381144, 50476430, 100952860, 201905720]

約数ペア:

[(1, 201905720), (2, 100952860), (4, 50476430), (5, 40381144), (8, 25238215), (10, 20190572), (20, 10095286), (40, 5047643)]