89497660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{639269}}^1$

素因数の和:639285

約数の個数: 24

約数和(自身を含む): 214794720

約数和(自身を除く): 125297060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 639269, 1278538, 2557076, 3196345, 4474883, 6392690, 8949766, 12785380, 17899532, 22374415, 44748830, 89497660]

約数ペア:

[(1, 89497660), (2, 44748830), (4, 22374415), (5, 17899532), (7, 12785380), (10, 8949766), (14, 6392690), (20, 4474883), (28, 3196345), (35, 2557076), (70, 1278538), (140, 639269)]