19535720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28729}}^1$

素因数の和:28757

約数の個数: 32

約数和(自身を含む): 46542600

約数和(自身を除く): 27006880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 28729, 57458, 114916, 143645, 229832, 287290, 488393, 574580, 976786, 1149160, 1953572, 2441965, 3907144, 4883930, 9767860, 19535720]

約数ペア:

[(1, 19535720), (2, 9767860), (4, 4883930), (5, 3907144), (8, 2441965), (10, 1953572), (17, 1149160), (20, 976786), (34, 574580), (40, 488393), (68, 287290), (85, 229832), (136, 143645), (170, 114916), (340, 57458), (680, 28729)]