18186610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:275

約数の個数: 64

約数和(自身を含む): 38304000

約数和(自身を除く): 20117390

約数列:

[1, 2, 5, 10, 13, 19, 26, 37, 38, 65, 74, 95, 130, 185, 190, 199, 247, 370, 398, 481, 494, 703, 962, 995, 1235, 1406, 1990, 2405, 2470, 2587, 3515, 3781, 4810, 5174, 7030, 7363, 7562, 9139, 12935, 14726, 18278, 18905, 25870, 36815, 37810, 45695, 49153, 73630, 91390, 95719, 98306, 139897, 191438, 245765, 279794, 478595, 491530, 699485, 957190, 1398970, 1818661, 3637322, 9093305, 18186610]

約数ペア:

[(1, 18186610), (2, 9093305), (5, 3637322), (10, 1818661), (13, 1398970), (19, 957190), (26, 699485), (37, 491530), (38, 478595), (65, 279794), (74, 245765), (95, 191438), (130, 139897), (185, 98306), (190, 95719), (199, 91390), (247, 73630), (370, 49153), (398, 45695), (481, 37810), (494, 36815), (703, 25870), (962, 18905), (995, 18278), (1235, 14726), (1406, 12935), (1990, 9139), (2405, 7562), (2470, 7363), (2587, 7030), (3515, 5174), (3781, 4810)]