320147555

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{743}}^1\times {\mathrm{947}}^1$

素因数の和:1715

約数の個数: 32

約数和(自身を含む): 473969664

約数和(自身を除く): 153822109

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 743, 947, 3715, 4735, 5201, 6629, 9659, 12311, 26005, 33145, 48295, 61555, 67613, 86177, 338065, 430885, 703621, 3518105, 4925347, 9147073, 24626735, 45735365, 64029511, 320147555]

約数ペア:

[(1, 320147555), (5, 64029511), (7, 45735365), (13, 24626735), (35, 9147073), (65, 4925347), (91, 3518105), (455, 703621), (743, 430885), (947, 338065), (3715, 86177), (4735, 67613), (5201, 61555), (6629, 48295), (9659, 33145), (12311, 26005)]