81865035

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{271}}^1$

素因数の和:433

約数の個数: 72

約数和(自身を含む): 166885056

約数和(自身を除く): 85020021

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 137, 147, 245, 271, 315, 411, 441, 685, 735, 813, 959, 1233, 1355, 1897, 2055, 2205, 2439, 2877, 4065, 4795, 5691, 6165, 6713, 8631, 9485, 12195, 13279, 14385, 17073, 20139, 28455, 33565, 37127, 39837, 43155, 60417, 66395, 85365, 100695, 111381, 119511, 185635, 199185, 259889, 302085, 334143, 556905, 597555, 779667, 1299445, 1670715, 1819223, 2339001, 3898335, 5457669, 9096115, 11695005, 16373007, 27288345, 81865035]

約数ペア:

[(1, 81865035), (3, 27288345), (5, 16373007), (7, 11695005), (9, 9096115), (15, 5457669), (21, 3898335), (35, 2339001), (45, 1819223), (49, 1670715), (63, 1299445), (105, 779667), (137, 597555), (147, 556905), (245, 334143), (271, 302085), (315, 259889), (411, 199185), (441, 185635), (685, 119511), (735, 111381), (813, 100695), (959, 85365), (1233, 66395), (1355, 60417), (1897, 43155), (2055, 39837), (2205, 37127), (2439, 33565), (2877, 28455), (4065, 20139), (4795, 17073), (5691, 14385), (6165, 13279), (6713, 12195), (8631, 9485)]