18885256

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:206

約数の個数: 64

約数和(自身を含む): 40360320

約数和(自身を除く): 21475064

約数列:

[1, 2, 4, 8, 13, 26, 41, 43, 52, 82, 86, 103, 104, 164, 172, 206, 328, 344, 412, 533, 559, 824, 1066, 1118, 1339, 1763, 2132, 2236, 2678, 3526, 4223, 4264, 4429, 4472, 5356, 7052, 8446, 8858, 10712, 14104, 16892, 17716, 22919, 33784, 35432, 45838, 54899, 57577, 91676, 109798, 115154, 181589, 183352, 219596, 230308, 363178, 439192, 460616, 726356, 1452712, 2360657, 4721314, 9442628, 18885256]

約数ペア:

[(1, 18885256), (2, 9442628), (4, 4721314), (8, 2360657), (13, 1452712), (26, 726356), (41, 460616), (43, 439192), (52, 363178), (82, 230308), (86, 219596), (103, 183352), (104, 181589), (164, 115154), (172, 109798), (206, 91676), (328, 57577), (344, 54899), (412, 45838), (533, 35432), (559, 33784), (824, 22919), (1066, 17716), (1118, 16892), (1339, 14104), (1763, 10712), (2132, 8858), (2236, 8446), (2678, 7052), (3526, 5356), (4223, 4472), (4264, 4429)]