81540964

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{421}}^1\times {\mathrm{1181}}^1$

素因数の和:1647

約数の個数: 24

約数和(自身を含む): 146648376

約数和(自身を除く): 65107412

約数列:

[1, 2, 4, 41, 82, 164, 421, 842, 1181, 1684, 2362, 4724, 17261, 34522, 48421, 69044, 96842, 193684, 497201, 994402, 1988804, 20385241, 40770482, 81540964]

約数ペア:

[(1, 81540964), (2, 40770482), (4, 20385241), (41, 1988804), (82, 994402), (164, 497201), (421, 193684), (842, 96842), (1181, 69044), (1684, 48421), (2362, 34522), (4724, 17261)]