271144360

素因数分解:

$2^3\times 5^1\times {\mathrm{1999}}^1\times {\mathrm{3391}}^1$

素因数の和:5401

約数の個数: 32

約数和(自身を含む): 610560000

約数和(自身を除く): 339415640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1999, 3391, 3998, 6782, 7996, 9995, 13564, 15992, 16955, 19990, 27128, 33910, 39980, 67820, 79960, 135640, 6778609, 13557218, 27114436, 33893045, 54228872, 67786090, 135572180, 271144360]

約数ペア:

[(1, 271144360), (2, 135572180), (4, 67786090), (5, 54228872), (8, 33893045), (10, 27114436), (20, 13557218), (40, 6778609), (1999, 135640), (3391, 79960), (3998, 67820), (6782, 39980), (7996, 33910), (9995, 27128), (13564, 19990), (15992, 16955)]