2490640

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1$

素因数の和:367

約数の個数: 40

約数和(自身を含む): 5856768

約数和(自身を除く): 3366128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 191, 326, 382, 652, 764, 815, 955, 1304, 1528, 1630, 1910, 2608, 3056, 3260, 3820, 6520, 7640, 13040, 15280, 31133, 62266, 124532, 155665, 249064, 311330, 498128, 622660, 1245320, 2490640]

約数ペア:

[(1, 2490640), (2, 1245320), (4, 622660), (5, 498128), (8, 311330), (10, 249064), (16, 155665), (20, 124532), (40, 62266), (80, 31133), (163, 15280), (191, 13040), (326, 7640), (382, 6520), (652, 3820), (764, 3260), (815, 3056), (955, 2608), (1304, 1910), (1528, 1630)]