89651660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{640369}}^1$

素因数の和:640385

約数の個数: 24

約数和(自身を含む): 215164320

約数和(自身を除く): 125512660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 640369, 1280738, 2561476, 3201845, 4482583, 6403690, 8965166, 12807380, 17930332, 22412915, 44825830, 89651660]

約数ペア:

[(1, 89651660), (2, 44825830), (4, 22412915), (5, 17930332), (7, 12807380), (10, 8965166), (14, 6403690), (20, 4482583), (28, 3201845), (35, 2561476), (70, 1280738), (140, 640369)]