1239880

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 2822400

約数和(自身を除く): 1582520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 223, 278, 446, 556, 695, 892, 1112, 1115, 1390, 1784, 2230, 2780, 4460, 5560, 8920, 30997, 61994, 123988, 154985, 247976, 309970, 619940, 1239880]

約数ペア:

[(1, 1239880), (2, 619940), (4, 309970), (5, 247976), (8, 154985), (10, 123988), (20, 61994), (40, 30997), (139, 8920), (223, 5560), (278, 4460), (446, 2780), (556, 2230), (695, 1784), (892, 1390), (1112, 1115)]