66870040

素因数分解:

$2^3\times 5^1\times {\mathrm{1039}}^1\times {\mathrm{1609}}^1$

素因数の和:2659

約数の個数: 32

約数和(自身を含む): 150696000

約数和(自身を除く): 83825960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1039, 1609, 2078, 3218, 4156, 5195, 6436, 8045, 8312, 10390, 12872, 16090, 20780, 32180, 41560, 64360, 1671751, 3343502, 6687004, 8358755, 13374008, 16717510, 33435020, 66870040]

約数ペア:

[(1, 66870040), (2, 33435020), (4, 16717510), (5, 13374008), (8, 8358755), (10, 6687004), (20, 3343502), (40, 1671751), (1039, 64360), (1609, 41560), (2078, 32180), (3218, 20780), (4156, 16090), (5195, 12872), (6436, 10390), (8045, 8312)]