138812240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{247879}}^1$

素因数の和:247899

約数の個数: 40

約数和(自身を含む): 368845440

約数和(自身を除く): 230033200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 247879, 495758, 991516, 1239395, 1735153, 1983032, 2478790, 3470306, 3966064, 4957580, 6940612, 8675765, 9915160, 13881224, 17351530, 19830320, 27762448, 34703060, 69406120, 138812240]

約数ペア:

[(1, 138812240), (2, 69406120), (4, 34703060), (5, 27762448), (7, 19830320), (8, 17351530), (10, 13881224), (14, 9915160), (16, 8675765), (20, 6940612), (28, 4957580), (35, 3966064), (40, 3470306), (56, 2478790), (70, 1983032), (80, 1735153), (112, 1239395), (140, 991516), (280, 495758), (560, 247879)]