28788440

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{15313}}^1$

素因数の和:15371

約数の個数: 32

約数和(自身を含む): 66156480

約数和(自身を除く): 37368040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 15313, 30626, 61252, 76565, 122504, 153130, 306260, 612520, 719711, 1439422, 2878844, 3598555, 5757688, 7197110, 14394220, 28788440]

約数ペア:

[(1, 28788440), (2, 14394220), (4, 7197110), (5, 5757688), (8, 3598555), (10, 2878844), (20, 1439422), (40, 719711), (47, 612520), (94, 306260), (188, 153130), (235, 122504), (376, 76565), (470, 61252), (940, 30626), (1880, 15313)]