18885640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27773}}^1$

素因数の和:27801

約数の個数: 32

約数和(自身を含む): 44993880

約数和(自身を除く): 26108240

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 27773, 55546, 111092, 138865, 222184, 277730, 472141, 555460, 944282, 1110920, 1888564, 2360705, 3777128, 4721410, 9442820, 18885640]

約数ペア:

[(1, 18885640), (2, 9442820), (4, 4721410), (5, 3777128), (8, 2360705), (10, 1888564), (17, 1110920), (20, 944282), (34, 555460), (40, 472141), (68, 277730), (85, 222184), (136, 138865), (170, 111092), (340, 55546), (680, 27773)]