64807520

素因数分解:

$2^5\times 5^1\times {\mathrm{405047}}^1$

素因数の和:405062

約数の個数: 24

約数和(自身を含む): 153108144

約数和(自身を除く): 88300624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 405047, 810094, 1620188, 2025235, 3240376, 4050470, 6480752, 8100940, 12961504, 16201880, 32403760, 64807520]

約数ペア:

[(1, 64807520), (2, 32403760), (4, 16201880), (5, 12961504), (8, 8100940), (10, 6480752), (16, 4050470), (20, 3240376), (32, 2025235), (40, 1620188), (80, 810094), (160, 405047)]