68253220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{977}}^1$

素因数の和:1492

約数の個数: 48

約数和(自身を含む): 164304000

約数和(自身を除く): 96050780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 499, 977, 998, 1954, 1996, 2495, 3493, 3908, 4885, 4990, 6839, 6986, 9770, 9980, 13678, 13972, 17465, 19540, 27356, 34195, 34930, 68390, 69860, 136780, 487523, 975046, 1950092, 2437615, 3412661, 4875230, 6825322, 9750460, 13650644, 17063305, 34126610, 68253220]

約数ペア:

[(1, 68253220), (2, 34126610), (4, 17063305), (5, 13650644), (7, 9750460), (10, 6825322), (14, 4875230), (20, 3412661), (28, 2437615), (35, 1950092), (70, 975046), (140, 487523), (499, 136780), (977, 69860), (998, 68390), (1954, 34930), (1996, 34195), (2495, 27356), (3493, 19540), (3908, 17465), (4885, 13972), (4990, 13678), (6839, 9980), (6986, 9770)]