31368880

素因数分解:

$2^4\times 5^1\times {\mathrm{392111}}^1$

素因数の和:392124

約数の個数: 20

約数和(自身を含む): 72932832

約数和(自身を除く): 41563952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 392111, 784222, 1568444, 1960555, 3136888, 3921110, 6273776, 7842220, 15684440, 31368880]

約数ペア:

[(1, 31368880), (2, 15684440), (4, 7842220), (5, 6273776), (8, 3921110), (10, 3136888), (16, 1960555), (20, 1568444), (40, 784222), (80, 392111)]