81221760

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{239}}^1$

素因数の和:323

約数の個数: 192

約数和(自身を含む): 286416000

約数和(自身を除く): 205194240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 59, 60, 64, 72, 80, 90, 96, 118, 120, 128, 144, 160, 177, 180, 192, 236, 239, 240, 288, 295, 320, 354, 360, 384, 472, 478, 480, 531, 576, 590, 640, 708, 717, 720, 885, 944, 956, 960, 1062, 1152, 1180, 1195, 1416, 1434, 1440, 1770, 1888, 1912, 1920, 2124, 2151, 2360, 2390, 2655, 2832, 2868, 2880, 3540, 3585, 3776, 3824, 4248, 4302, 4720, 4780, 5310, 5664, 5736, 5760, 7080, 7170, 7552, 7648, 8496, 8604, 9440, 9560, 10620, 10755, 11328, 11472, 14101, 14160, 14340, 15296, 16992, 17208, 18880, 19120, 21240, 21510, 22656, 22944, 28202, 28320, 28680, 30592, 33984, 34416, 37760, 38240, 42303, 42480, 43020, 45888, 56404, 56640, 57360, 67968, 68832, 70505, 76480, 84606, 84960, 86040, 91776, 112808, 113280, 114720, 126909, 137664, 141010, 152960, 169212, 169920, 172080, 211515, 225616, 229440, 253818, 275328, 282020, 338424, 339840, 344160, 423030, 451232, 458880, 507636, 564040, 634545, 676848, 688320, 846060, 902464, 1015272, 1128080, 1269090, 1353696, 1376640, 1692120, 1804928, 2030544, 2256160, 2538180, 2707392, 3384240, 4061088, 4512320, 5076360, 5414784, 6768480, 8122176, 9024640, 10152720, 13536960, 16244352, 20305440, 27073920, 40610880, 81221760]

約数ペア:

[(1, 81221760), (2, 40610880), (3, 27073920), (4, 20305440), (5, 16244352), (6, 13536960), (8, 10152720), (9, 9024640), (10, 8122176), (12, 6768480), (15, 5414784), (16, 5076360), (18, 4512320), (20, 4061088), (24, 3384240), (30, 2707392), (32, 2538180), (36, 2256160), (40, 2030544), (45, 1804928), (48, 1692120), (59, 1376640), (60, 1353696), (64, 1269090), (72, 1128080), (80, 1015272), (90, 902464), (96, 846060), (118, 688320), (120, 676848), (128, 634545), (144, 564040), (160, 507636), (177, 458880), (180, 451232), (192, 423030), (236, 344160), (239, 339840), (240, 338424), (288, 282020), (295, 275328), (320, 253818), (354, 229440), (360, 225616), (384, 211515), (472, 172080), (478, 169920), (480, 169212), (531, 152960), (576, 141010), (590, 137664), (640, 126909), (708, 114720), (717, 113280), (720, 112808), (885, 91776), (944, 86040), (956, 84960), (960, 84606), (1062, 76480), (1152, 70505), (1180, 68832), (1195, 67968), (1416, 57360), (1434, 56640), (1440, 56404), (1770, 45888), (1888, 43020), (1912, 42480), (1920, 42303), (2124, 38240), (2151, 37760), (2360, 34416), (2390, 33984), (2655, 30592), (2832, 28680), (2868, 28320), (2880, 28202), (3540, 22944), (3585, 22656), (3776, 21510), (3824, 21240), (4248, 19120), (4302, 18880), (4720, 17208), (4780, 16992), (5310, 15296), (5664, 14340), (5736, 14160), (5760, 14101), (7080, 11472), (7170, 11328), (7552, 10755), (7648, 10620), (8496, 9560), (8604, 9440)]