81845704

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{823}}^1$

素因数の和:1261

約数の個数: 32

約数和(自身を含む): 158999040

約数和(自身を除く): 77153336

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 401, 802, 823, 1604, 1646, 3208, 3292, 6584, 12431, 24862, 25513, 49724, 51026, 99448, 102052, 204104, 330023, 660046, 1320092, 2640184, 10230713, 20461426, 40922852, 81845704]

約数ペア:

[(1, 81845704), (2, 40922852), (4, 20461426), (8, 10230713), (31, 2640184), (62, 1320092), (124, 660046), (248, 330023), (401, 204104), (802, 102052), (823, 99448), (1604, 51026), (1646, 49724), (3208, 25513), (3292, 24862), (6584, 12431)]