19489480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28661}}^1$

素因数の和:28689

約数の個数: 32

約数和(自身を含む): 46432440

約数和(自身を除く): 26942960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 28661, 57322, 114644, 143305, 229288, 286610, 487237, 573220, 974474, 1146440, 1948948, 2436185, 3897896, 4872370, 9744740, 19489480]

約数ペア:

[(1, 19489480), (2, 9744740), (4, 4872370), (5, 3897896), (8, 2436185), (10, 1948948), (17, 1146440), (20, 974474), (34, 573220), (40, 487237), (68, 286610), (85, 229288), (136, 143305), (170, 114644), (340, 57322), (680, 28661)]