28445360

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8269}}^1$

素因数の和:8325

約数の個数: 40

約数和(自身を含む): 67681680

約数和(自身を除く): 39236320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 8269, 16538, 33076, 41345, 66152, 82690, 132304, 165380, 330760, 355567, 661520, 711134, 1422268, 1777835, 2844536, 3555670, 5689072, 7111340, 14222680, 28445360]

約数ペア:

[(1, 28445360), (2, 14222680), (4, 7111340), (5, 5689072), (8, 3555670), (10, 2844536), (16, 1777835), (20, 1422268), (40, 711134), (43, 661520), (80, 355567), (86, 330760), (172, 165380), (215, 132304), (344, 82690), (430, 66152), (688, 41345), (860, 33076), (1720, 16538), (3440, 8269)]