247615480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{884341}}^1$

素因数の和:884359

約数の個数: 32

約数和(自身を含む): 636726240

約数和(自身を除く): 389110760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 884341, 1768682, 3537364, 4421705, 6190387, 7074728, 8843410, 12380774, 17686820, 24761548, 30951935, 35373640, 49523096, 61903870, 123807740, 247615480]

約数ペア:

[(1, 247615480), (2, 123807740), (4, 61903870), (5, 49523096), (7, 35373640), (8, 30951935), (10, 24761548), (14, 17686820), (20, 12380774), (28, 8843410), (35, 7074728), (40, 6190387), (56, 4421705), (70, 3537364), (140, 1768682), (280, 884341)]