18517019905

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{373}}^1\times {\mathrm{521}}^1$

素因数の和:994

約数の個数: 64

約数和(自身を含む): 25301548800

約数和(自身を除く): 6784528895

約数列:

[1, 5, 17, 19, 59, 85, 95, 295, 323, 373, 521, 1003, 1121, 1615, 1865, 2605, 5015, 5605, 6341, 7087, 8857, 9899, 19057, 22007, 30739, 31705, 35435, 44285, 49495, 95285, 110035, 120479, 153695, 168283, 194333, 374119, 418133, 522563, 584041, 602395, 841415, 971665, 1870595, 2090665, 2612815, 2920205, 3303661, 3692327, 7108261, 9928697, 11465647, 16518305, 18461635, 35541305, 49643485, 57328235, 62769559, 194915999, 217847293, 313847795, 974579995, 1089236465, 3703403981, 18517019905]

約数ペア:

[(1, 18517019905), (5, 3703403981), (17, 1089236465), (19, 974579995), (59, 313847795), (85, 217847293), (95, 194915999), (295, 62769559), (323, 57328235), (373, 49643485), (521, 35541305), (1003, 18461635), (1121, 16518305), (1615, 11465647), (1865, 9928697), (2605, 7108261), (5015, 3692327), (5605, 3303661), (6341, 2920205), (7087, 2612815), (8857, 2090665), (9899, 1870595), (19057, 971665), (22007, 841415), (30739, 602395), (31705, 584041), (35435, 522563), (44285, 418133), (49495, 374119), (95285, 194333), (110035, 168283), (120479, 153695)]