2505399940

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1\times {\mathrm{8923}}^1$

素因数の和:9172

約数の個数: 48

約数和(自身を含む): 5352258240

約数和(自身を除く): 2846858300

約数列:

[1, 2, 4, 5, 10, 20, 101, 139, 202, 278, 404, 505, 556, 695, 1010, 1390, 2020, 2780, 8923, 14039, 17846, 28078, 35692, 44615, 56156, 70195, 89230, 140390, 178460, 280780, 901223, 1240297, 1802446, 2480594, 3604892, 4506115, 4961188, 6201485, 9012230, 12402970, 18024460, 24805940, 125269997, 250539994, 501079988, 626349985, 1252699970, 2505399940]

約数ペア:

[(1, 2505399940), (2, 1252699970), (4, 626349985), (5, 501079988), (10, 250539994), (20, 125269997), (101, 24805940), (139, 18024460), (202, 12402970), (278, 9012230), (404, 6201485), (505, 4961188), (556, 4506115), (695, 3604892), (1010, 2480594), (1390, 1802446), (2020, 1240297), (2780, 901223), (8923, 280780), (14039, 178460), (17846, 140390), (28078, 89230), (35692, 70195), (44615, 56156)]