81821245

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1297}}^1$

素因数の和:1381

約数の個数: 32

約数和(自身を含む): 113642496

約数和(自身を除く): 31821251

約数列:

[1, 5, 11, 31, 37, 55, 155, 185, 341, 407, 1147, 1297, 1705, 2035, 5735, 6485, 12617, 14267, 40207, 47989, 63085, 71335, 201035, 239945, 442277, 527879, 1487659, 2211385, 2639395, 7438295, 16364249, 81821245]

約数ペア:

[(1, 81821245), (5, 16364249), (11, 7438295), (31, 2639395), (37, 2211385), (55, 1487659), (155, 527879), (185, 442277), (341, 239945), (407, 201035), (1147, 71335), (1297, 63085), (1705, 47989), (2035, 40207), (5735, 14267), (6485, 12617)]