71749405

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2221}}^1$

素因数の和:2317

約数の個数: 32

約数和(自身を含む): 107509248

約数和(自身を除く): 35759843

約数列:

[1, 5, 7, 13, 35, 65, 71, 91, 355, 455, 497, 923, 2221, 2485, 4615, 6461, 11105, 15547, 28873, 32305, 77735, 144365, 157691, 202111, 788455, 1010555, 1103837, 2049983, 5519185, 10249915, 14349881, 71749405]

約数ペア:

[(1, 71749405), (5, 14349881), (7, 10249915), (13, 5519185), (35, 2049983), (65, 1103837), (71, 1010555), (91, 788455), (355, 202111), (455, 157691), (497, 144365), (923, 77735), (2221, 32305), (2485, 28873), (4615, 15547), (6461, 11105)]