19015590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1987}}^1$

素因数の和:2037

約数の個数: 64

約数和(自身を含む): 51528960

約数和(自身を除く): 32513370

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 29, 30, 33, 55, 58, 66, 87, 110, 145, 165, 174, 290, 319, 330, 435, 638, 870, 957, 1595, 1914, 1987, 3190, 3974, 4785, 5961, 9570, 9935, 11922, 19870, 21857, 29805, 43714, 57623, 59610, 65571, 109285, 115246, 131142, 172869, 218570, 288115, 327855, 345738, 576230, 633853, 655710, 864345, 1267706, 1728690, 1901559, 3169265, 3803118, 6338530, 9507795, 19015590]

約数ペア:

[(1, 19015590), (2, 9507795), (3, 6338530), (5, 3803118), (6, 3169265), (10, 1901559), (11, 1728690), (15, 1267706), (22, 864345), (29, 655710), (30, 633853), (33, 576230), (55, 345738), (58, 327855), (66, 288115), (87, 218570), (110, 172869), (145, 131142), (165, 115246), (174, 109285), (290, 65571), (319, 59610), (330, 57623), (435, 43714), (638, 29805), (870, 21857), (957, 19870), (1595, 11922), (1914, 9935), (1987, 9570), (3190, 5961), (3974, 4785)]