18945320

素因数分解:

$2^3\times 5^1\times {\mathrm{473633}}^1$

素因数の和:473644

約数の個数: 16

約数和(自身を含む): 42627060

約数和(自身を除く): 23681740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 473633, 947266, 1894532, 2368165, 3789064, 4736330, 9472660, 18945320]

約数ペア:

[(1, 18945320), (2, 9472660), (4, 4736330), (5, 3789064), (8, 2368165), (10, 1894532), (20, 947266), (40, 473633)]