81919008

素因数分解:

$2^5\times 3^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:271

約数の個数: 144

約数和(自身を含む): 247665600

約数和(自身を除く): 165746592

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 32, 36, 46, 48, 69, 72, 83, 92, 96, 138, 144, 149, 166, 184, 207, 249, 276, 288, 298, 332, 368, 414, 447, 498, 552, 596, 664, 736, 747, 828, 894, 996, 1104, 1192, 1328, 1341, 1494, 1656, 1788, 1909, 1992, 2208, 2384, 2656, 2682, 2988, 3312, 3427, 3576, 3818, 3984, 4768, 5364, 5727, 5976, 6624, 6854, 7152, 7636, 7968, 10281, 10728, 11454, 11952, 12367, 13708, 14304, 15272, 17181, 20562, 21456, 22908, 23904, 24734, 27416, 30544, 30843, 34362, 37101, 41124, 42912, 45816, 49468, 54832, 61088, 61686, 68724, 74202, 82248, 91632, 98936, 109664, 111303, 123372, 137448, 148404, 164496, 183264, 197872, 222606, 246744, 274896, 284441, 296808, 328992, 395744, 445212, 493488, 549792, 568882, 593616, 853323, 890424, 986976, 1137764, 1187232, 1706646, 1780848, 2275528, 2559969, 3413292, 3561696, 4551056, 5119938, 6826584, 9102112, 10239876, 13653168, 20479752, 27306336, 40959504, 81919008]

約数ペア:

[(1, 81919008), (2, 40959504), (3, 27306336), (4, 20479752), (6, 13653168), (8, 10239876), (9, 9102112), (12, 6826584), (16, 5119938), (18, 4551056), (23, 3561696), (24, 3413292), (32, 2559969), (36, 2275528), (46, 1780848), (48, 1706646), (69, 1187232), (72, 1137764), (83, 986976), (92, 890424), (96, 853323), (138, 593616), (144, 568882), (149, 549792), (166, 493488), (184, 445212), (207, 395744), (249, 328992), (276, 296808), (288, 284441), (298, 274896), (332, 246744), (368, 222606), (414, 197872), (447, 183264), (498, 164496), (552, 148404), (596, 137448), (664, 123372), (736, 111303), (747, 109664), (828, 98936), (894, 91632), (996, 82248), (1104, 74202), (1192, 68724), (1328, 61686), (1341, 61088), (1494, 54832), (1656, 49468), (1788, 45816), (1909, 42912), (1992, 41124), (2208, 37101), (2384, 34362), (2656, 30843), (2682, 30544), (2988, 27416), (3312, 24734), (3427, 23904), (3576, 22908), (3818, 21456), (3984, 20562), (4768, 17181), (5364, 15272), (5727, 14304), (5976, 13708), (6624, 12367), (6854, 11952), (7152, 11454), (7636, 10728), (7968, 10281)]