18429560

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1069}}^1$

素因数の和:1511

約数の個数: 32

約数和(自身を含む): 41601600

約数和(自身を除く): 23172040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1069, 1724, 2138, 2155, 3448, 4276, 4310, 5345, 8552, 8620, 10690, 17240, 21380, 42760, 460739, 921478, 1842956, 2303695, 3685912, 4607390, 9214780, 18429560]

約数ペア:

[(1, 18429560), (2, 9214780), (4, 4607390), (5, 3685912), (8, 2303695), (10, 1842956), (20, 921478), (40, 460739), (431, 42760), (862, 21380), (1069, 17240), (1724, 10690), (2138, 8620), (2155, 8552), (3448, 5345), (4276, 4310)]