1396780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{907}}^1$

素因数の和:934

約数の個数: 48

約数和(自身を含む): 3661056

約数和(自身を除く): 2264276

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 907, 1540, 1814, 3628, 4535, 6349, 9070, 9977, 12698, 18140, 19954, 25396, 31745, 39908, 49885, 63490, 69839, 99770, 126980, 139678, 199540, 279356, 349195, 698390, 1396780]

約数ペア:

[(1, 1396780), (2, 698390), (4, 349195), (5, 279356), (7, 199540), (10, 139678), (11, 126980), (14, 99770), (20, 69839), (22, 63490), (28, 49885), (35, 39908), (44, 31745), (55, 25396), (70, 19954), (77, 18140), (110, 12698), (140, 9977), (154, 9070), (220, 6349), (308, 4535), (385, 3628), (770, 1814), (907, 1540)]