81106816

素因数分解:

$2^7\times 7^1\times {\mathrm{131}}^1\times {\mathrm{691}}^1$

素因数の和:843

約数の個数: 64

約数和(自身を含む): 186341760

約数和(自身を除く): 105234944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 131, 224, 262, 448, 524, 691, 896, 917, 1048, 1382, 1834, 2096, 2764, 3668, 4192, 4837, 5528, 7336, 8384, 9674, 11056, 14672, 16768, 19348, 22112, 29344, 38696, 44224, 58688, 77392, 88448, 90521, 117376, 154784, 181042, 309568, 362084, 619136, 633647, 724168, 1267294, 1448336, 2534588, 2896672, 5069176, 5793344, 10138352, 11586688, 20276704, 40553408, 81106816]

約数ペア:

[(1, 81106816), (2, 40553408), (4, 20276704), (7, 11586688), (8, 10138352), (14, 5793344), (16, 5069176), (28, 2896672), (32, 2534588), (56, 1448336), (64, 1267294), (112, 724168), (128, 633647), (131, 619136), (224, 362084), (262, 309568), (448, 181042), (524, 154784), (691, 117376), (896, 90521), (917, 88448), (1048, 77392), (1382, 58688), (1834, 44224), (2096, 38696), (2764, 29344), (3668, 22112), (4192, 19348), (4837, 16768), (5528, 14672), (7336, 11056), (8384, 9674)]