7145780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21017}}^1$

素因数の和:21043

約数の個数: 24

約数和(自身を含む): 15889608

約数和(自身を除く): 8743828

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 21017, 42034, 84068, 105085, 210170, 357289, 420340, 714578, 1429156, 1786445, 3572890, 7145780]

約数ペア:

[(1, 7145780), (2, 3572890), (4, 1786445), (5, 1429156), (10, 714578), (17, 420340), (20, 357289), (34, 210170), (68, 105085), (85, 84068), (170, 42034), (340, 21017)]