28438520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64633}}^1$

素因数の和:64655

約数の個数: 32

約数和(自身を含む): 69804720

約数和(自身を除く): 41366200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 64633, 129266, 258532, 323165, 517064, 646330, 710963, 1292660, 1421926, 2585320, 2843852, 3554815, 5687704, 7109630, 14219260, 28438520]

約数ペア:

[(1, 28438520), (2, 14219260), (4, 7109630), (5, 5687704), (8, 3554815), (10, 2843852), (11, 2585320), (20, 1421926), (22, 1292660), (40, 710963), (44, 646330), (55, 517064), (88, 323165), (110, 258532), (220, 129266), (440, 64633)]