668223560

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{156127}}^1$

素因数の和:156245

約数の個数: 32

約数和(自身を含む): 1517564160

約数和(自身を除く): 849340600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 156127, 312254, 624508, 780635, 1249016, 1561270, 3122540, 6245080, 16705589, 33411178, 66822356, 83527945, 133644712, 167055890, 334111780, 668223560]

約数ペア:

[(1, 668223560), (2, 334111780), (4, 167055890), (5, 133644712), (8, 83527945), (10, 66822356), (20, 33411178), (40, 16705589), (107, 6245080), (214, 3122540), (428, 1561270), (535, 1249016), (856, 780635), (1070, 624508), (2140, 312254), (4280, 156127)]