139921040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{249859}}^1$

素因数の和:249879

約数の個数: 40

約数和(自身を含む): 371791680

約数和(自身を除く): 231870640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 249859, 499718, 999436, 1249295, 1749013, 1998872, 2498590, 3498026, 3997744, 4997180, 6996052, 8745065, 9994360, 13992104, 17490130, 19988720, 27984208, 34980260, 69960520, 139921040]

約数ペア:

[(1, 139921040), (2, 69960520), (4, 34980260), (5, 27984208), (7, 19988720), (8, 17490130), (10, 13992104), (14, 9994360), (16, 8745065), (20, 6996052), (28, 4997180), (35, 3997744), (40, 3498026), (56, 2498590), (70, 1998872), (80, 1749013), (112, 1249295), (140, 999436), (280, 499718), (560, 249859)]