64348840

素因数分解:

$2^3\times 5^1\times {\mathrm{709}}^1\times {\mathrm{2269}}^1$

素因数の和:2989

約数の個数: 32

約数和(自身を含む): 145053000

約数和(自身を除く): 80704160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 709, 1418, 2269, 2836, 3545, 4538, 5672, 7090, 9076, 11345, 14180, 18152, 22690, 28360, 45380, 90760, 1608721, 3217442, 6434884, 8043605, 12869768, 16087210, 32174420, 64348840]

約数ペア:

[(1, 64348840), (2, 32174420), (4, 16087210), (5, 12869768), (8, 8043605), (10, 6434884), (20, 3217442), (40, 1608721), (709, 90760), (1418, 45380), (2269, 28360), (2836, 22690), (3545, 18152), (4538, 14180), (5672, 11345), (7090, 9076)]