18789080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27631}}^1$

素因数の和:27659

約数の個数: 32

約数和(自身を含む): 44763840

約数和(自身を除く): 25974760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 27631, 55262, 110524, 138155, 221048, 276310, 469727, 552620, 939454, 1105240, 1878908, 2348635, 3757816, 4697270, 9394540, 18789080]

約数ペア:

[(1, 18789080), (2, 9394540), (4, 4697270), (5, 3757816), (8, 2348635), (10, 1878908), (17, 1105240), (20, 939454), (34, 552620), (40, 469727), (68, 276310), (85, 221048), (136, 138155), (170, 110524), (340, 55262), (680, 27631)]