66376720

素因数分解:

$2^4\times 5^1\times {\mathrm{829709}}^1$

素因数の和:829722

約数の個数: 20

約数和(自身を含む): 154326060

約数和(自身を除く): 87949340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 829709, 1659418, 3318836, 4148545, 6637672, 8297090, 13275344, 16594180, 33188360, 66376720]

約数ペア:

[(1, 66376720), (2, 33188360), (4, 16594180), (5, 13275344), (8, 8297090), (10, 6637672), (16, 4148545), (20, 3318836), (40, 1659418), (80, 829709)]