12786440

素因数分解:

$2^3\times 5^1\times {\mathrm{373}}^1\times {\mathrm{857}}^1$

素因数の和:1241

約数の個数: 32

約数和(自身を含む): 28880280

約数和(自身を除く): 16093840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 373, 746, 857, 1492, 1714, 1865, 2984, 3428, 3730, 4285, 6856, 7460, 8570, 14920, 17140, 34280, 319661, 639322, 1278644, 1598305, 2557288, 3196610, 6393220, 12786440]

約数ペア:

[(1, 12786440), (2, 6393220), (4, 3196610), (5, 2557288), (8, 1598305), (10, 1278644), (20, 639322), (40, 319661), (373, 34280), (746, 17140), (857, 14920), (1492, 8570), (1714, 7460), (1865, 6856), (2984, 4285), (3428, 3730)]