1997820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1009}}^1$

素因数の和:1035

約数の個数: 72

約数和(自身を含む): 6617520

約数和(自身を除く): 4619700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1009, 1980, 2018, 3027, 4036, 5045, 6054, 9081, 10090, 11099, 12108, 15135, 18162, 20180, 22198, 30270, 33297, 36324, 44396, 45405, 55495, 60540, 66594, 90810, 99891, 110990, 133188, 166485, 181620, 199782, 221980, 332970, 399564, 499455, 665940, 998910, 1997820]

約数ペア:

[(1, 1997820), (2, 998910), (3, 665940), (4, 499455), (5, 399564), (6, 332970), (9, 221980), (10, 199782), (11, 181620), (12, 166485), (15, 133188), (18, 110990), (20, 99891), (22, 90810), (30, 66594), (33, 60540), (36, 55495), (44, 45405), (45, 44396), (55, 36324), (60, 33297), (66, 30270), (90, 22198), (99, 20180), (110, 18162), (132, 15135), (165, 12108), (180, 11099), (198, 10090), (220, 9081), (330, 6054), (396, 5045), (495, 4036), (660, 3027), (990, 2018), (1009, 1980)]