19723320

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{54787}}^1$

素因数の和:54804

約数の個数: 48

約数和(自身を含む): 64101960

約数和(自身を除く): 44378640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 54787, 109574, 164361, 219148, 273935, 328722, 438296, 493083, 547870, 657444, 821805, 986166, 1095740, 1314888, 1643610, 1972332, 2191480, 2465415, 3287220, 3944664, 4930830, 6574440, 9861660, 19723320]

約数ペア:

[(1, 19723320), (2, 9861660), (3, 6574440), (4, 4930830), (5, 3944664), (6, 3287220), (8, 2465415), (9, 2191480), (10, 1972332), (12, 1643610), (15, 1314888), (18, 1095740), (20, 986166), (24, 821805), (30, 657444), (36, 547870), (40, 493083), (45, 438296), (60, 328722), (72, 273935), (90, 219148), (120, 164361), (180, 109574), (360, 54787)]