19027645

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:146

約数の個数: 64

約数和(自身を含む): 30965760

約数和(自身を除く): 11938115

約数列:

[1, 5, 7, 13, 19, 31, 35, 65, 71, 91, 95, 133, 155, 217, 247, 355, 403, 455, 497, 589, 665, 923, 1085, 1235, 1349, 1729, 2015, 2201, 2485, 2821, 2945, 4123, 4615, 6461, 6745, 7657, 8645, 9443, 11005, 14105, 15407, 17537, 20615, 28613, 32305, 38285, 41819, 47215, 53599, 77035, 87685, 122759, 143065, 200291, 209095, 267995, 292733, 543647, 613795, 1001455, 1463665, 2718235, 3805529, 19027645]

約数ペア:

[(1, 19027645), (5, 3805529), (7, 2718235), (13, 1463665), (19, 1001455), (31, 613795), (35, 543647), (65, 292733), (71, 267995), (91, 209095), (95, 200291), (133, 143065), (155, 122759), (217, 87685), (247, 77035), (355, 53599), (403, 47215), (455, 41819), (497, 38285), (589, 32305), (665, 28613), (923, 20615), (1085, 17537), (1235, 15407), (1349, 14105), (1729, 11005), (2015, 9443), (2201, 8645), (2485, 7657), (2821, 6745), (2945, 6461), (4123, 4615)]