15906040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20929}}^1$

素因数の和:20959

約数の個数: 32

約数和(自身を含む): 37674000

約数和(自身を除く): 21767960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 20929, 41858, 83716, 104645, 167432, 209290, 397651, 418580, 795302, 837160, 1590604, 1988255, 3181208, 3976510, 7953020, 15906040]

約数ペア:

[(1, 15906040), (2, 7953020), (4, 3976510), (5, 3181208), (8, 1988255), (10, 1590604), (19, 837160), (20, 795302), (38, 418580), (40, 397651), (76, 209290), (95, 167432), (152, 104645), (190, 83716), (380, 41858), (760, 20929)]