71821255

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1217}}^1$

素因数の和:1299

約数の個数: 32

約数和(自身を含む): 99973440

約数和(自身を除く): 28152185

約数列:

[1, 5, 11, 29, 37, 55, 145, 185, 319, 407, 1073, 1217, 1595, 2035, 5365, 6085, 11803, 13387, 35293, 45029, 59015, 66935, 176465, 225145, 388223, 495319, 1305841, 1941115, 2476595, 6529205, 14364251, 71821255]

約数ペア:

[(1, 71821255), (5, 14364251), (11, 6529205), (29, 2476595), (37, 1941115), (55, 1305841), (145, 495319), (185, 388223), (319, 225145), (407, 176465), (1073, 66935), (1217, 59015), (1595, 45029), (2035, 35293), (5365, 13387), (6085, 11803)]