81801188

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{13463}}^1$

素因数の和:13512

約数の個数: 36

約数和(自身を含む): 171908352

約数和(自身を除く): 90107164

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 196, 217, 434, 868, 1519, 3038, 6076, 13463, 26926, 53852, 94241, 188482, 376964, 417353, 659687, 834706, 1319374, 1669412, 2638748, 2921471, 5842942, 11685884, 20450297, 40900594, 81801188]

約数ペア:

[(1, 81801188), (2, 40900594), (4, 20450297), (7, 11685884), (14, 5842942), (28, 2921471), (31, 2638748), (49, 1669412), (62, 1319374), (98, 834706), (124, 659687), (196, 417353), (217, 376964), (434, 188482), (868, 94241), (1519, 53852), (3038, 26926), (6076, 13463)]