81261306

素因数分解:

$2^1\times 3^4\times 7^2\times {\mathrm{29}}^1\times {\mathrm{353}}^1$

素因数の和:410

約数の個数: 120

約数和(自身を含む): 219738420

約数和(自身を除く): 138477114

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 29, 42, 49, 54, 58, 63, 81, 87, 98, 126, 147, 162, 174, 189, 203, 261, 294, 353, 378, 406, 441, 522, 567, 609, 706, 783, 882, 1059, 1134, 1218, 1323, 1421, 1566, 1827, 2118, 2349, 2471, 2646, 2842, 3177, 3654, 3969, 4263, 4698, 4942, 5481, 6354, 7413, 7938, 8526, 9531, 10237, 10962, 12789, 14826, 16443, 17297, 19062, 20474, 22239, 25578, 28593, 30711, 32886, 34594, 38367, 44478, 51891, 57186, 61422, 66717, 71659, 76734, 92133, 103782, 115101, 133434, 143318, 155673, 184266, 200151, 214977, 230202, 276399, 311346, 400302, 429954, 467019, 501613, 552798, 644931, 829197, 934038, 1003226, 1289862, 1401057, 1504839, 1658394, 1934793, 2802114, 3009678, 3869586, 4514517, 5804379, 9029034, 11608758, 13543551, 27087102, 40630653, 81261306]

約数ペア:

[(1, 81261306), (2, 40630653), (3, 27087102), (6, 13543551), (7, 11608758), (9, 9029034), (14, 5804379), (18, 4514517), (21, 3869586), (27, 3009678), (29, 2802114), (42, 1934793), (49, 1658394), (54, 1504839), (58, 1401057), (63, 1289862), (81, 1003226), (87, 934038), (98, 829197), (126, 644931), (147, 552798), (162, 501613), (174, 467019), (189, 429954), (203, 400302), (261, 311346), (294, 276399), (353, 230202), (378, 214977), (406, 200151), (441, 184266), (522, 155673), (567, 143318), (609, 133434), (706, 115101), (783, 103782), (882, 92133), (1059, 76734), (1134, 71659), (1218, 66717), (1323, 61422), (1421, 57186), (1566, 51891), (1827, 44478), (2118, 38367), (2349, 34594), (2471, 32886), (2646, 30711), (2842, 28593), (3177, 25578), (3654, 22239), (3969, 20474), (4263, 19062), (4698, 17297), (4942, 16443), (5481, 14826), (6354, 12789), (7413, 10962), (7938, 10237), (8526, 9531)]