81652880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53719}}^1$

素因数の和:53751

約数の個数: 40

約数和(自身を含む): 199838400

約数和(自身を除く): 118185520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 53719, 107438, 214876, 268595, 429752, 537190, 859504, 1020661, 1074380, 2041322, 2148760, 4082644, 4297520, 5103305, 8165288, 10206610, 16330576, 20413220, 40826440, 81652880]

約数ペア:

[(1, 81652880), (2, 40826440), (4, 20413220), (5, 16330576), (8, 10206610), (10, 8165288), (16, 5103305), (19, 4297520), (20, 4082644), (38, 2148760), (40, 2041322), (76, 1074380), (80, 1020661), (95, 859504), (152, 537190), (190, 429752), (304, 268595), (380, 214876), (760, 107438), (1520, 53719)]