20642390

素因数分解:

$2^1\times 5^1\times {\mathrm{1069}}^1\times {\mathrm{1931}}^1$

素因数の和:3007

約数の個数: 16

約数和(自身を含む): 37210320

約数和(自身を除く): 16567930

約数列:

[1, 2, 5, 10, 1069, 1931, 2138, 3862, 5345, 9655, 10690, 19310, 2064239, 4128478, 10321195, 20642390]

約数ペア:

[(1, 20642390), (2, 10321195), (5, 4128478), (10, 2064239), (1069, 19310), (1931, 10690), (2138, 9655), (3862, 5345)]