81996480

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:495

約数の個数: 168

約数和(自身を含む): 286719264

約数和(自身を除く): 204722784

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 71, 72, 80, 90, 96, 120, 142, 144, 160, 180, 192, 213, 240, 284, 288, 320, 355, 360, 401, 426, 480, 568, 576, 639, 710, 720, 802, 852, 960, 1065, 1136, 1203, 1278, 1420, 1440, 1604, 1704, 2005, 2130, 2272, 2406, 2556, 2840, 2880, 3195, 3208, 3408, 3609, 4010, 4260, 4544, 4812, 5112, 5680, 6015, 6390, 6416, 6816, 7218, 8020, 8520, 9624, 10224, 11360, 12030, 12780, 12832, 13632, 14436, 16040, 17040, 18045, 19248, 20448, 22720, 24060, 25560, 25664, 28471, 28872, 32080, 34080, 36090, 38496, 40896, 48120, 51120, 56942, 57744, 64160, 68160, 72180, 76992, 85413, 96240, 102240, 113884, 115488, 128320, 142355, 144360, 170826, 192480, 204480, 227768, 230976, 256239, 284710, 288720, 341652, 384960, 427065, 455536, 512478, 569420, 577440, 683304, 854130, 911072, 1024956, 1138840, 1154880, 1281195, 1366608, 1708260, 1822144, 2049912, 2277680, 2562390, 2733216, 3416520, 4099824, 4555360, 5124780, 5466432, 6833040, 8199648, 9110720, 10249560, 13666080, 16399296, 20499120, 27332160, 40998240, 81996480]

約数ペア:

[(1, 81996480), (2, 40998240), (3, 27332160), (4, 20499120), (5, 16399296), (6, 13666080), (8, 10249560), (9, 9110720), (10, 8199648), (12, 6833040), (15, 5466432), (16, 5124780), (18, 4555360), (20, 4099824), (24, 3416520), (30, 2733216), (32, 2562390), (36, 2277680), (40, 2049912), (45, 1822144), (48, 1708260), (60, 1366608), (64, 1281195), (71, 1154880), (72, 1138840), (80, 1024956), (90, 911072), (96, 854130), (120, 683304), (142, 577440), (144, 569420), (160, 512478), (180, 455536), (192, 427065), (213, 384960), (240, 341652), (284, 288720), (288, 284710), (320, 256239), (355, 230976), (360, 227768), (401, 204480), (426, 192480), (480, 170826), (568, 144360), (576, 142355), (639, 128320), (710, 115488), (720, 113884), (802, 102240), (852, 96240), (960, 85413), (1065, 76992), (1136, 72180), (1203, 68160), (1278, 64160), (1420, 57744), (1440, 56942), (1604, 51120), (1704, 48120), (2005, 40896), (2130, 38496), (2272, 36090), (2406, 34080), (2556, 32080), (2840, 28872), (2880, 28471), (3195, 25664), (3208, 25560), (3408, 24060), (3609, 22720), (4010, 20448), (4260, 19248), (4544, 18045), (4812, 17040), (5112, 16040), (5680, 14436), (6015, 13632), (6390, 12832), (6416, 12780), (6816, 12030), (7218, 11360), (8020, 10224), (8520, 9624)]