66286840

素因数分解:

$2^3\times 5^1\times {\mathrm{829}}^1\times {\mathrm{1999}}^1$

素因数の和:2839

約数の個数: 32

約数和(自身を含む): 149400000

約数和(自身を除く): 83113160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 829, 1658, 1999, 3316, 3998, 4145, 6632, 7996, 8290, 9995, 15992, 16580, 19990, 33160, 39980, 79960, 1657171, 3314342, 6628684, 8285855, 13257368, 16571710, 33143420, 66286840]

約数ペア:

[(1, 66286840), (2, 33143420), (4, 16571710), (5, 13257368), (8, 8285855), (10, 6628684), (20, 3314342), (40, 1657171), (829, 79960), (1658, 39980), (1999, 33160), (3316, 19990), (3998, 16580), (4145, 15992), (6632, 9995), (7996, 8290)]