54405325

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:278

約数の個数: 36

約数和(自身を含む): 74429760

約数和(自身を除く): 20024435

約数列:

[1, 5, 13, 25, 65, 79, 163, 169, 325, 395, 815, 845, 1027, 1975, 2119, 4075, 4225, 5135, 10595, 12877, 13351, 25675, 27547, 52975, 64385, 66755, 137735, 167401, 321925, 333775, 688675, 837005, 2176213, 4185025, 10881065, 54405325]

約数ペア:

[(1, 54405325), (5, 10881065), (13, 4185025), (25, 2176213), (65, 837005), (79, 688675), (163, 333775), (169, 321925), (325, 167401), (395, 137735), (815, 66755), (845, 64385), (1027, 52975), (1975, 27547), (2119, 25675), (4075, 13351), (4225, 12877), (5135, 10595)]