18870680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27751}}^1$

素因数の和:27779

約数の個数: 32

約数和(自身を含む): 44958240

約数和(自身を除く): 26087560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 27751, 55502, 111004, 138755, 222008, 277510, 471767, 555020, 943534, 1110040, 1887068, 2358835, 3774136, 4717670, 9435340, 18870680]

約数ペア:

[(1, 18870680), (2, 9435340), (4, 4717670), (5, 3774136), (8, 2358835), (10, 1887068), (17, 1110040), (20, 943534), (34, 555020), (40, 471767), (68, 277510), (85, 222008), (136, 138755), (170, 111004), (340, 55502), (680, 27751)]