28229080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64157}}^1$

素因数の和:64179

約数の個数: 32

約数和(自身を含む): 69290640

約数和(自身を除く): 41061560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 64157, 128314, 256628, 320785, 513256, 641570, 705727, 1283140, 1411454, 2566280, 2822908, 3528635, 5645816, 7057270, 14114540, 28229080]

約数ペア:

[(1, 28229080), (2, 14114540), (4, 7057270), (5, 5645816), (8, 3528635), (10, 2822908), (11, 2566280), (20, 1411454), (22, 1283140), (40, 705727), (44, 641570), (55, 513256), (88, 320785), (110, 256628), (220, 128314), (440, 64157)]