81650690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{547}}^1$

素因数の和:647

約数の個数: 64

約数和(自身を含む): 170449920

約数和(自身を除く): 88799230

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 59, 110, 115, 118, 230, 253, 295, 506, 547, 590, 649, 1094, 1265, 1298, 1357, 2530, 2714, 2735, 3245, 5470, 6017, 6490, 6785, 12034, 12581, 13570, 14927, 25162, 29854, 30085, 32273, 60170, 62905, 64546, 74635, 125810, 138391, 149270, 161365, 276782, 322730, 355003, 691955, 710006, 742279, 1383910, 1484558, 1775015, 3550030, 3711395, 7422790, 8165069, 16330138, 40825345, 81650690]

約数ペア:

[(1, 81650690), (2, 40825345), (5, 16330138), (10, 8165069), (11, 7422790), (22, 3711395), (23, 3550030), (46, 1775015), (55, 1484558), (59, 1383910), (110, 742279), (115, 710006), (118, 691955), (230, 355003), (253, 322730), (295, 276782), (506, 161365), (547, 149270), (590, 138391), (649, 125810), (1094, 74635), (1265, 64546), (1298, 62905), (1357, 60170), (2530, 32273), (2714, 30085), (2735, 29854), (3245, 25162), (5470, 14927), (6017, 13570), (6490, 12581), (6785, 12034)]