18044920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11003}}^1$

素因数の和:11055

約数の個数: 32

約数和(自身を含む): 41595120

約数和(自身を除く): 23550200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 11003, 22006, 44012, 55015, 88024, 110030, 220060, 440120, 451123, 902246, 1804492, 2255615, 3608984, 4511230, 9022460, 18044920]

約数ペア:

[(1, 18044920), (2, 9022460), (4, 4511230), (5, 3608984), (8, 2255615), (10, 1804492), (20, 902246), (40, 451123), (41, 440120), (82, 220060), (164, 110030), (205, 88024), (328, 55015), (410, 44012), (820, 22006), (1640, 11003)]