81257638

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{503}}^1\times {\mathrm{1049}}^1$

素因数の和:1572

約数の個数: 32

約数和(自身を含む): 152409600

約数和(自身を除く): 71151962

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 503, 1006, 1049, 2098, 3521, 5533, 7042, 7343, 11066, 11539, 14686, 23078, 38731, 77462, 80773, 161546, 527647, 1055294, 3693529, 5804117, 7387058, 11608234, 40628819, 81257638]

約数ペア:

[(1, 81257638), (2, 40628819), (7, 11608234), (11, 7387058), (14, 5804117), (22, 3693529), (77, 1055294), (154, 527647), (503, 161546), (1006, 80773), (1049, 77462), (2098, 38731), (3521, 23078), (5533, 14686), (7042, 11539), (7343, 11066)]