81391968

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{859}}^1$

素因数の和:929

約数の個数: 144

約数和(自身を含む): 270466560

約数和(自身を除く): 189074592

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 47, 48, 56, 63, 72, 84, 94, 96, 112, 126, 141, 144, 168, 188, 224, 252, 282, 288, 329, 336, 376, 423, 504, 564, 658, 672, 752, 846, 859, 987, 1008, 1128, 1316, 1504, 1692, 1718, 1974, 2016, 2256, 2577, 2632, 2961, 3384, 3436, 3948, 4512, 5154, 5264, 5922, 6013, 6768, 6872, 7731, 7896, 10308, 10528, 11844, 12026, 13536, 13744, 15462, 15792, 18039, 20616, 23688, 24052, 27488, 30924, 31584, 36078, 40373, 41232, 47376, 48104, 54117, 61848, 72156, 80746, 82464, 94752, 96208, 108234, 121119, 123696, 144312, 161492, 192416, 216468, 242238, 247392, 282611, 288624, 322984, 363357, 432936, 484476, 565222, 577248, 645968, 726714, 847833, 865872, 968952, 1130444, 1291936, 1453428, 1695666, 1731744, 1937904, 2260888, 2543499, 2906856, 3391332, 3875808, 4521776, 5086998, 5813712, 6782664, 9043552, 10173996, 11627424, 13565328, 20347992, 27130656, 40695984, 81391968]

約数ペア:

[(1, 81391968), (2, 40695984), (3, 27130656), (4, 20347992), (6, 13565328), (7, 11627424), (8, 10173996), (9, 9043552), (12, 6782664), (14, 5813712), (16, 5086998), (18, 4521776), (21, 3875808), (24, 3391332), (28, 2906856), (32, 2543499), (36, 2260888), (42, 1937904), (47, 1731744), (48, 1695666), (56, 1453428), (63, 1291936), (72, 1130444), (84, 968952), (94, 865872), (96, 847833), (112, 726714), (126, 645968), (141, 577248), (144, 565222), (168, 484476), (188, 432936), (224, 363357), (252, 322984), (282, 288624), (288, 282611), (329, 247392), (336, 242238), (376, 216468), (423, 192416), (504, 161492), (564, 144312), (658, 123696), (672, 121119), (752, 108234), (846, 96208), (859, 94752), (987, 82464), (1008, 80746), (1128, 72156), (1316, 61848), (1504, 54117), (1692, 48104), (1718, 47376), (1974, 41232), (2016, 40373), (2256, 36078), (2577, 31584), (2632, 30924), (2961, 27488), (3384, 24052), (3436, 23688), (3948, 20616), (4512, 18039), (5154, 15792), (5264, 15462), (5922, 13744), (6013, 13536), (6768, 12026), (6872, 11844), (7731, 10528), (7896, 10308)]