19999480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29411}}^1$

素因数の和:29439

約数の個数: 32

約数和(自身を含む): 47647440

約数和(自身を除く): 27647960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 29411, 58822, 117644, 147055, 235288, 294110, 499987, 588220, 999974, 1176440, 1999948, 2499935, 3999896, 4999870, 9999740, 19999480]

約数ペア:

[(1, 19999480), (2, 9999740), (4, 4999870), (5, 3999896), (8, 2499935), (10, 1999948), (17, 1176440), (20, 999974), (34, 588220), (40, 499987), (68, 294110), (85, 235288), (136, 147055), (170, 117644), (340, 58822), (680, 29411)]