28163975

素因数分解:

$5^2\times 7^2\times {\mathrm{83}}^1\times {\mathrm{277}}^1$

素因数の和:384

約数の個数: 36

約数和(自身を含む): 41262984

約数和(自身を除く): 13099009

約数列:

[1, 5, 7, 25, 35, 49, 83, 175, 245, 277, 415, 581, 1225, 1385, 1939, 2075, 2905, 4067, 6925, 9695, 13573, 14525, 20335, 22991, 48475, 67865, 101675, 114955, 160937, 339325, 574775, 804685, 1126559, 4023425, 5632795, 28163975]

約数ペア:

[(1, 28163975), (5, 5632795), (7, 4023425), (25, 1126559), (35, 804685), (49, 574775), (83, 339325), (175, 160937), (245, 114955), (277, 101675), (415, 67865), (581, 48475), (1225, 22991), (1385, 20335), (1939, 14525), (2075, 13573), (2905, 9695), (4067, 6925)]