81696160

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:247

約数の個数: 192

約数和(自身を含む): 246564864

約数和(自身を除く): 164868704

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 32, 35, 40, 52, 56, 62, 65, 70, 80, 91, 104, 112, 124, 130, 140, 155, 160, 181, 182, 208, 217, 224, 248, 260, 280, 310, 362, 364, 403, 416, 434, 455, 496, 520, 560, 620, 724, 728, 806, 868, 905, 910, 992, 1040, 1085, 1120, 1240, 1267, 1448, 1456, 1612, 1736, 1810, 1820, 2015, 2080, 2170, 2353, 2480, 2534, 2821, 2896, 2912, 3224, 3472, 3620, 3640, 4030, 4340, 4706, 4960, 5068, 5611, 5642, 5792, 6335, 6448, 6944, 7240, 7280, 8060, 8680, 9412, 10136, 11222, 11284, 11765, 12670, 12896, 14105, 14480, 14560, 16120, 16471, 17360, 18824, 20272, 22444, 22568, 23530, 25340, 28055, 28210, 28960, 32240, 32942, 34720, 37648, 39277, 40544, 44888, 45136, 47060, 50680, 56110, 56420, 64480, 65884, 72943, 75296, 78554, 82355, 89776, 90272, 94120, 101360, 112220, 112840, 131768, 145886, 157108, 164710, 179552, 188240, 196385, 202720, 224440, 225680, 263536, 291772, 314216, 329420, 364715, 376480, 392770, 448880, 451360, 510601, 527072, 583544, 628432, 658840, 729430, 785540, 897760, 1021202, 1167088, 1256864, 1317680, 1458860, 1571080, 2042404, 2334176, 2553005, 2635360, 2917720, 3142160, 4084808, 5106010, 5835440, 6284320, 8169616, 10212020, 11670880, 16339232, 20424040, 40848080, 81696160]

約数ペア:

[(1, 81696160), (2, 40848080), (4, 20424040), (5, 16339232), (7, 11670880), (8, 10212020), (10, 8169616), (13, 6284320), (14, 5835440), (16, 5106010), (20, 4084808), (26, 3142160), (28, 2917720), (31, 2635360), (32, 2553005), (35, 2334176), (40, 2042404), (52, 1571080), (56, 1458860), (62, 1317680), (65, 1256864), (70, 1167088), (80, 1021202), (91, 897760), (104, 785540), (112, 729430), (124, 658840), (130, 628432), (140, 583544), (155, 527072), (160, 510601), (181, 451360), (182, 448880), (208, 392770), (217, 376480), (224, 364715), (248, 329420), (260, 314216), (280, 291772), (310, 263536), (362, 225680), (364, 224440), (403, 202720), (416, 196385), (434, 188240), (455, 179552), (496, 164710), (520, 157108), (560, 145886), (620, 131768), (724, 112840), (728, 112220), (806, 101360), (868, 94120), (905, 90272), (910, 89776), (992, 82355), (1040, 78554), (1085, 75296), (1120, 72943), (1240, 65884), (1267, 64480), (1448, 56420), (1456, 56110), (1612, 50680), (1736, 47060), (1810, 45136), (1820, 44888), (2015, 40544), (2080, 39277), (2170, 37648), (2353, 34720), (2480, 32942), (2534, 32240), (2821, 28960), (2896, 28210), (2912, 28055), (3224, 25340), (3472, 23530), (3620, 22568), (3640, 22444), (4030, 20272), (4340, 18824), (4706, 17360), (4960, 16471), (5068, 16120), (5611, 14560), (5642, 14480), (5792, 14105), (6335, 12896), (6448, 12670), (6944, 11765), (7240, 11284), (7280, 11222), (8060, 10136), (8680, 9412)]