81020368

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2083}}^1$

素因数の和:2132

約数の個数: 80

約数和(自身を含む): 195362496

約数和(自身を除く): 114342128

約数列:

[1, 2, 4, 8, 11, 13, 16, 17, 22, 26, 34, 44, 52, 68, 88, 104, 136, 143, 176, 187, 208, 221, 272, 286, 374, 442, 572, 748, 884, 1144, 1496, 1768, 2083, 2288, 2431, 2992, 3536, 4166, 4862, 8332, 9724, 16664, 19448, 22913, 27079, 33328, 35411, 38896, 45826, 54158, 70822, 91652, 108316, 141644, 183304, 216632, 283288, 297869, 366608, 389521, 433264, 460343, 566576, 595738, 779042, 920686, 1191476, 1558084, 1841372, 2382952, 3116168, 3682744, 4765904, 5063773, 6232336, 7365488, 10127546, 20255092, 40510184, 81020368]

約数ペア:

[(1, 81020368), (2, 40510184), (4, 20255092), (8, 10127546), (11, 7365488), (13, 6232336), (16, 5063773), (17, 4765904), (22, 3682744), (26, 3116168), (34, 2382952), (44, 1841372), (52, 1558084), (68, 1191476), (88, 920686), (104, 779042), (136, 595738), (143, 566576), (176, 460343), (187, 433264), (208, 389521), (221, 366608), (272, 297869), (286, 283288), (374, 216632), (442, 183304), (572, 141644), (748, 108316), (884, 91652), (1144, 70822), (1496, 54158), (1768, 45826), (2083, 38896), (2288, 35411), (2431, 33328), (2992, 27079), (3536, 22913), (4166, 19448), (4862, 16664), (8332, 9724)]