31303545

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:135

約数の個数: 128

約数和(自身を含む): 69672960

約数和(自身を除く): 38369415

約数列:

[1, 3, 5, 7, 13, 15, 17, 19, 21, 35, 39, 51, 57, 65, 71, 85, 91, 95, 105, 119, 133, 195, 213, 221, 247, 255, 273, 285, 323, 355, 357, 399, 455, 497, 595, 663, 665, 741, 923, 969, 1065, 1105, 1207, 1235, 1349, 1365, 1491, 1547, 1615, 1729, 1785, 1995, 2261, 2485, 2769, 3315, 3621, 3705, 4047, 4199, 4615, 4641, 4845, 5187, 6035, 6461, 6745, 6783, 7455, 7735, 8449, 8645, 9443, 11305, 12597, 13845, 15691, 17537, 18105, 19383, 20235, 20995, 22933, 23205, 25347, 25935, 28329, 29393, 32305, 33915, 42245, 47073, 47215, 52611, 62985, 68799, 78455, 87685, 88179, 96915, 109837, 114665, 122759, 126735, 141645, 146965, 160531, 235365, 263055, 298129, 329511, 343995, 368277, 440895, 481593, 549185, 613795, 802655, 894387, 1490645, 1647555, 1841385, 2086903, 2407965, 4471935, 6260709, 10434515, 31303545]

約数ペア:

[(1, 31303545), (3, 10434515), (5, 6260709), (7, 4471935), (13, 2407965), (15, 2086903), (17, 1841385), (19, 1647555), (21, 1490645), (35, 894387), (39, 802655), (51, 613795), (57, 549185), (65, 481593), (71, 440895), (85, 368277), (91, 343995), (95, 329511), (105, 298129), (119, 263055), (133, 235365), (195, 160531), (213, 146965), (221, 141645), (247, 126735), (255, 122759), (273, 114665), (285, 109837), (323, 96915), (355, 88179), (357, 87685), (399, 78455), (455, 68799), (497, 62985), (595, 52611), (663, 47215), (665, 47073), (741, 42245), (923, 33915), (969, 32305), (1065, 29393), (1105, 28329), (1207, 25935), (1235, 25347), (1349, 23205), (1365, 22933), (1491, 20995), (1547, 20235), (1615, 19383), (1729, 18105), (1785, 17537), (1995, 15691), (2261, 13845), (2485, 12597), (2769, 11305), (3315, 9443), (3621, 8645), (3705, 8449), (4047, 7735), (4199, 7455), (4615, 6783), (4641, 6745), (4845, 6461), (5187, 6035)]