28785080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{42331}}^1$

素因数の和:42359

約数の個数: 32

約数和(自身を含む): 68577840

約数和(自身を除く): 39792760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 42331, 84662, 169324, 211655, 338648, 423310, 719627, 846620, 1439254, 1693240, 2878508, 3598135, 5757016, 7196270, 14392540, 28785080]

約数ペア:

[(1, 28785080), (2, 14392540), (4, 7196270), (5, 5757016), (8, 3598135), (10, 2878508), (17, 1693240), (20, 1439254), (34, 846620), (40, 719627), (68, 423310), (85, 338648), (136, 211655), (170, 169324), (340, 84662), (680, 42331)]