5281905

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{431}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 9123840

約数和(自身を除く): 3841935

約数列:

[1, 3, 5, 15, 19, 43, 57, 95, 129, 215, 285, 431, 645, 817, 1293, 2155, 2451, 4085, 6465, 8189, 12255, 18533, 24567, 40945, 55599, 92665, 122835, 277995, 352127, 1056381, 1760635, 5281905]

約数ペア:

[(1, 5281905), (3, 1760635), (5, 1056381), (15, 352127), (19, 277995), (43, 122835), (57, 92665), (95, 55599), (129, 40945), (215, 24567), (285, 18533), (431, 12255), (645, 8189), (817, 6465), (1293, 4085), (2155, 2451)]