15550040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{599}}^1$

素因数の和:680

約数の個数: 64

約数和(自身を含む): 38880000

約数和(自身を除く): 23329960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 59, 88, 110, 118, 220, 236, 295, 440, 472, 590, 599, 649, 1180, 1198, 1298, 2360, 2396, 2596, 2995, 3245, 4792, 5192, 5990, 6490, 6589, 11980, 12980, 13178, 23960, 25960, 26356, 32945, 35341, 52712, 65890, 70682, 131780, 141364, 176705, 263560, 282728, 353410, 388751, 706820, 777502, 1413640, 1555004, 1943755, 3110008, 3887510, 7775020, 15550040]

約数ペア:

[(1, 15550040), (2, 7775020), (4, 3887510), (5, 3110008), (8, 1943755), (10, 1555004), (11, 1413640), (20, 777502), (22, 706820), (40, 388751), (44, 353410), (55, 282728), (59, 263560), (88, 176705), (110, 141364), (118, 131780), (220, 70682), (236, 65890), (295, 52712), (440, 35341), (472, 32945), (590, 26356), (599, 25960), (649, 23960), (1180, 13178), (1198, 12980), (1298, 11980), (2360, 6589), (2396, 6490), (2596, 5990), (2995, 5192), (3245, 4792)]