18925160

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11003}}^1$

素因数の和:11057

約数の個数: 32

約数和(自身を含む): 43575840

約数和(自身を除く): 24650680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 11003, 22006, 44012, 55015, 88024, 110030, 220060, 440120, 473129, 946258, 1892516, 2365645, 3785032, 4731290, 9462580, 18925160]

約数ペア:

[(1, 18925160), (2, 9462580), (4, 4731290), (5, 3785032), (8, 2365645), (10, 1892516), (20, 946258), (40, 473129), (43, 440120), (86, 220060), (172, 110030), (215, 88024), (344, 55015), (430, 44012), (860, 22006), (1720, 11003)]