2663240

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{479}}^1$

素因数の和:629

約数の個数: 32

約数和(自身を含む): 6048000

約数和(自身を除く): 3384760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 479, 556, 695, 958, 1112, 1390, 1916, 2395, 2780, 3832, 4790, 5560, 9580, 19160, 66581, 133162, 266324, 332905, 532648, 665810, 1331620, 2663240]

約数ペア:

[(1, 2663240), (2, 1331620), (4, 665810), (5, 532648), (8, 332905), (10, 266324), (20, 133162), (40, 66581), (139, 19160), (278, 9580), (479, 5560), (556, 4790), (695, 3832), (958, 2780), (1112, 2395), (1390, 1916)]