12787655

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 17584128

約数和(自身を除く): 4796473

約数列:

[1, 5, 17, 23, 31, 85, 115, 155, 211, 391, 527, 713, 1055, 1955, 2635, 3565, 3587, 4853, 6541, 12121, 17935, 24265, 32705, 60605, 82501, 111197, 150443, 412505, 555985, 752215, 2557531, 12787655]

約数ペア:

[(1, 12787655), (5, 2557531), (17, 752215), (23, 555985), (31, 412505), (85, 150443), (115, 111197), (155, 82501), (211, 60605), (391, 32705), (527, 24265), (713, 17935), (1055, 12121), (1955, 6541), (2635, 4853), (3565, 3587)]