8381320

素因数分解:

$2^3\times 5^1\times {\mathrm{209533}}^1$

素因数の和:209544

約数の個数: 16

約数和(自身を含む): 18858060

約数和(自身を除く): 10476740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 209533, 419066, 838132, 1047665, 1676264, 2095330, 4190660, 8381320]

約数ペア:

[(1, 8381320), (2, 4190660), (4, 2095330), (5, 1676264), (8, 1047665), (10, 838132), (20, 419066), (40, 209533)]