81557784

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{313}}^1$

素因数の和:390

約数の個数: 192

約数和(自身を含む): 282147840

約数和(自身を除く): 200590056

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 18, 21, 22, 24, 28, 33, 36, 42, 44, 47, 56, 63, 66, 72, 77, 84, 88, 94, 99, 126, 132, 141, 154, 168, 188, 198, 231, 252, 264, 282, 308, 313, 329, 376, 396, 423, 462, 504, 517, 564, 616, 626, 658, 693, 792, 846, 924, 939, 987, 1034, 1128, 1252, 1316, 1386, 1551, 1692, 1848, 1878, 1974, 2068, 2191, 2504, 2632, 2772, 2817, 2961, 3102, 3384, 3443, 3619, 3756, 3948, 4136, 4382, 4653, 5544, 5634, 5922, 6204, 6573, 6886, 7238, 7512, 7896, 8764, 9306, 10329, 10857, 11268, 11844, 12408, 13146, 13772, 14476, 14711, 17528, 18612, 19719, 20658, 21714, 22536, 23688, 24101, 26292, 27544, 28952, 29422, 30987, 32571, 37224, 39438, 41316, 43428, 44133, 48202, 52584, 58844, 61974, 65142, 72303, 78876, 82632, 86856, 88266, 96404, 102977, 117688, 123948, 130284, 132399, 144606, 157752, 161821, 176532, 192808, 205954, 216909, 247896, 260568, 264798, 289212, 308931, 323642, 353064, 411908, 433818, 485463, 529596, 578424, 617862, 647284, 823816, 867636, 926793, 970926, 1059192, 1132747, 1235724, 1294568, 1456389, 1735272, 1853586, 1941852, 2265494, 2471448, 2912778, 3398241, 3707172, 3883704, 4530988, 5825556, 6796482, 7414344, 9061976, 10194723, 11651112, 13592964, 20389446, 27185928, 40778892, 81557784]

約数ペア:

[(1, 81557784), (2, 40778892), (3, 27185928), (4, 20389446), (6, 13592964), (7, 11651112), (8, 10194723), (9, 9061976), (11, 7414344), (12, 6796482), (14, 5825556), (18, 4530988), (21, 3883704), (22, 3707172), (24, 3398241), (28, 2912778), (33, 2471448), (36, 2265494), (42, 1941852), (44, 1853586), (47, 1735272), (56, 1456389), (63, 1294568), (66, 1235724), (72, 1132747), (77, 1059192), (84, 970926), (88, 926793), (94, 867636), (99, 823816), (126, 647284), (132, 617862), (141, 578424), (154, 529596), (168, 485463), (188, 433818), (198, 411908), (231, 353064), (252, 323642), (264, 308931), (282, 289212), (308, 264798), (313, 260568), (329, 247896), (376, 216909), (396, 205954), (423, 192808), (462, 176532), (504, 161821), (517, 157752), (564, 144606), (616, 132399), (626, 130284), (658, 123948), (693, 117688), (792, 102977), (846, 96404), (924, 88266), (939, 86856), (987, 82632), (1034, 78876), (1128, 72303), (1252, 65142), (1316, 61974), (1386, 58844), (1551, 52584), (1692, 48202), (1848, 44133), (1878, 43428), (1974, 41316), (2068, 39438), (2191, 37224), (2504, 32571), (2632, 30987), (2772, 29422), (2817, 28952), (2961, 27544), (3102, 26292), (3384, 24101), (3443, 23688), (3619, 22536), (3756, 21714), (3948, 20658), (4136, 19719), (4382, 18612), (4653, 17528), (5544, 14711), (5634, 14476), (5922, 13772), (6204, 13146), (6573, 12408), (6886, 11844), (7238, 11268), (7512, 10857), (7896, 10329), (8764, 9306)]