81065816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{21067}}^1$

素因数の和:21123

約数の個数: 32

約数和(自身を含む): 168122640

約数和(自身を除く): 87056824

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 148, 296, 481, 962, 1924, 3848, 21067, 42134, 84268, 168536, 273871, 547742, 779479, 1095484, 1558958, 2190968, 3117916, 6235832, 10133227, 20266454, 40532908, 81065816]

約数ペア:

[(1, 81065816), (2, 40532908), (4, 20266454), (8, 10133227), (13, 6235832), (26, 3117916), (37, 2190968), (52, 1558958), (74, 1095484), (104, 779479), (148, 547742), (296, 273871), (481, 168536), (962, 84268), (1924, 42134), (3848, 21067)]