66440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1$

素因数の和:173

約数の個数: 32

約数和(自身を含む): 164160

約数和(自身を除く): 97720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 151, 220, 302, 440, 604, 755, 1208, 1510, 1661, 3020, 3322, 6040, 6644, 8305, 13288, 16610, 33220, 66440]

約数ペア:

[(1, 66440), (2, 33220), (4, 16610), (5, 13288), (8, 8305), (10, 6644), (11, 6040), (20, 3322), (22, 3020), (40, 1661), (44, 1510), (55, 1208), (88, 755), (110, 604), (151, 440), (220, 302)]