81200660

素因数分解:

$2^2\times 5^1\times {\mathrm{1163}}^1\times {\mathrm{3491}}^1$

素因数の和:4663

約数の個数: 24

約数和(自身を含む): 170716896

約数和(自身を除く): 89516236

約数列:

[1, 2, 4, 5, 10, 20, 1163, 2326, 3491, 4652, 5815, 6982, 11630, 13964, 17455, 23260, 34910, 69820, 4060033, 8120066, 16240132, 20300165, 40600330, 81200660]

約数ペア:

[(1, 81200660), (2, 40600330), (4, 20300165), (5, 16240132), (10, 8120066), (20, 4060033), (1163, 69820), (2326, 34910), (3491, 23260), (4652, 17455), (5815, 13964), (6982, 11630)]