28431320

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{13411}}^1$

素因数の和:13475

約数の個数: 32

約数和(自身を含む): 65182320

約数和(自身を除く): 36751000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 13411, 26822, 53644, 67055, 107288, 134110, 268220, 536440, 710783, 1421566, 2843132, 3553915, 5686264, 7107830, 14215660, 28431320]

約数ペア:

[(1, 28431320), (2, 14215660), (4, 7107830), (5, 5686264), (8, 3553915), (10, 2843132), (20, 1421566), (40, 710783), (53, 536440), (106, 268220), (212, 134110), (265, 107288), (424, 67055), (530, 53644), (1060, 26822), (2120, 13411)]