308886040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{21391}}^1$

素因数の和:21440

約数の個数: 48

約数和(自身を含む): 733531680

約数和(自身を除く): 424645640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2888, 3610, 7220, 14440, 21391, 42782, 85564, 106955, 171128, 213910, 406429, 427820, 812858, 855640, 1625716, 2032145, 3251432, 4064290, 7722151, 8128580, 15444302, 16257160, 30888604, 38610755, 61777208, 77221510, 154443020, 308886040]

約数ペア:

[(1, 308886040), (2, 154443020), (4, 77221510), (5, 61777208), (8, 38610755), (10, 30888604), (19, 16257160), (20, 15444302), (38, 8128580), (40, 7722151), (76, 4064290), (95, 3251432), (152, 2032145), (190, 1625716), (361, 855640), (380, 812858), (722, 427820), (760, 406429), (1444, 213910), (1805, 171128), (2888, 106955), (3610, 85564), (7220, 42782), (14440, 21391)]