20218887899

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1\times {\mathrm{461}}^1$

素因数の和:764

約数の個数: 64

約数和(自身を含む): 25866086400

約数和(自身を除く): 5647198501

約数列:

[1, 7, 17, 29, 71, 119, 179, 203, 461, 493, 497, 1207, 1253, 2059, 3043, 3227, 3451, 5191, 7837, 8449, 12709, 13369, 14413, 21301, 32731, 35003, 36337, 54859, 82519, 88247, 88963, 93583, 216053, 227273, 229117, 245021, 368561, 556427, 577633, 617729, 949199, 1402823, 1512371, 1590911, 2393051, 2579927, 3894989, 5858849, 6265537, 6644393, 9819761, 16136383, 16751357, 40681867, 41011943, 43858759, 99600433, 112954681, 169906621, 284773069, 697203031, 1189346347, 2888412557, 20218887899]

約数ペア:

[(1, 20218887899), (7, 2888412557), (17, 1189346347), (29, 697203031), (71, 284773069), (119, 169906621), (179, 112954681), (203, 99600433), (461, 43858759), (493, 41011943), (497, 40681867), (1207, 16751357), (1253, 16136383), (2059, 9819761), (3043, 6644393), (3227, 6265537), (3451, 5858849), (5191, 3894989), (7837, 2579927), (8449, 2393051), (12709, 1590911), (13369, 1512371), (14413, 1402823), (21301, 949199), (32731, 617729), (35003, 577633), (36337, 556427), (54859, 368561), (82519, 245021), (88247, 229117), (88963, 227273), (93583, 216053)]