66405320

素因数分解:

$2^3\times 5^1\times {\mathrm{1660133}}^1$

素因数の和:1660144

約数の個数: 16

約数和(自身を含む): 149412060

約数和(自身を除く): 83006740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1660133, 3320266, 6640532, 8300665, 13281064, 16601330, 33202660, 66405320]

約数ペア:

[(1, 66405320), (2, 33202660), (4, 16601330), (5, 13281064), (8, 8300665), (10, 6640532), (20, 3320266), (40, 1660133)]