78419887

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{151}}^1\times {\mathrm{439}}^1$

素因数の和:623

約数の個数: 24

約数和(自身を含む): 97912320

約数和(自身を除く): 19492433

約数列:

[1, 7, 13, 91, 151, 169, 439, 1057, 1183, 1963, 3073, 5707, 13741, 25519, 39949, 66289, 74191, 178633, 464023, 519337, 861757, 6032299, 11202841, 78419887]

約数ペア:

[(1, 78419887), (7, 11202841), (13, 6032299), (91, 861757), (151, 519337), (169, 464023), (439, 178633), (1057, 74191), (1183, 66289), (1963, 39949), (3073, 25519), (5707, 13741)]