18108805

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:122

約数の個数: 64

約数和(自身を含む): 28385280

約数和(自身を除く): 10276475

約数列:

[1, 5, 11, 13, 19, 31, 43, 55, 65, 95, 143, 155, 209, 215, 247, 341, 403, 473, 559, 589, 715, 817, 1045, 1235, 1333, 1705, 2015, 2365, 2717, 2795, 2945, 4085, 4433, 6149, 6479, 6665, 7657, 8987, 10621, 13585, 14663, 17329, 22165, 25327, 30745, 32395, 38285, 44935, 53105, 73315, 84227, 86645, 116831, 126635, 190619, 278597, 329251, 421135, 584155, 953095, 1392985, 1646255, 3621761, 18108805]

約数ペア:

[(1, 18108805), (5, 3621761), (11, 1646255), (13, 1392985), (19, 953095), (31, 584155), (43, 421135), (55, 329251), (65, 278597), (95, 190619), (143, 126635), (155, 116831), (209, 86645), (215, 84227), (247, 73315), (341, 53105), (403, 44935), (473, 38285), (559, 32395), (589, 30745), (715, 25327), (817, 22165), (1045, 17329), (1235, 14663), (1333, 13585), (1705, 10621), (2015, 8987), (2365, 7657), (2717, 6665), (2795, 6479), (2945, 6149), (4085, 4433)]