21852720

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:240

約数の個数: 160

約数和(自身を含む): 76899840

約数和(自身を除く): 55047120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 67, 72, 80, 90, 108, 120, 134, 135, 144, 151, 180, 201, 216, 240, 268, 270, 302, 335, 360, 402, 432, 453, 536, 540, 603, 604, 670, 720, 755, 804, 906, 1005, 1072, 1080, 1206, 1208, 1340, 1359, 1510, 1608, 1809, 1812, 2010, 2160, 2265, 2412, 2416, 2680, 2718, 3015, 3020, 3216, 3618, 3624, 4020, 4077, 4530, 4824, 5360, 5436, 6030, 6040, 6795, 7236, 7248, 8040, 8154, 9045, 9060, 9648, 10117, 10872, 12060, 12080, 13590, 14472, 16080, 16308, 18090, 18120, 20234, 20385, 21744, 24120, 27180, 28944, 30351, 32616, 36180, 36240, 40468, 40770, 48240, 50585, 54360, 60702, 65232, 72360, 80936, 81540, 91053, 101170, 108720, 121404, 144720, 151755, 161872, 163080, 182106, 202340, 242808, 273159, 303510, 326160, 364212, 404680, 455265, 485616, 546318, 607020, 728424, 809360, 910530, 1092636, 1214040, 1365795, 1456848, 1821060, 2185272, 2428080, 2731590, 3642120, 4370544, 5463180, 7284240, 10926360, 21852720]

約数ペア:

[(1, 21852720), (2, 10926360), (3, 7284240), (4, 5463180), (5, 4370544), (6, 3642120), (8, 2731590), (9, 2428080), (10, 2185272), (12, 1821060), (15, 1456848), (16, 1365795), (18, 1214040), (20, 1092636), (24, 910530), (27, 809360), (30, 728424), (36, 607020), (40, 546318), (45, 485616), (48, 455265), (54, 404680), (60, 364212), (67, 326160), (72, 303510), (80, 273159), (90, 242808), (108, 202340), (120, 182106), (134, 163080), (135, 161872), (144, 151755), (151, 144720), (180, 121404), (201, 108720), (216, 101170), (240, 91053), (268, 81540), (270, 80936), (302, 72360), (335, 65232), (360, 60702), (402, 54360), (432, 50585), (453, 48240), (536, 40770), (540, 40468), (603, 36240), (604, 36180), (670, 32616), (720, 30351), (755, 28944), (804, 27180), (906, 24120), (1005, 21744), (1072, 20385), (1080, 20234), (1206, 18120), (1208, 18090), (1340, 16308), (1359, 16080), (1510, 14472), (1608, 13590), (1809, 12080), (1812, 12060), (2010, 10872), (2160, 10117), (2265, 9648), (2412, 9060), (2416, 9045), (2680, 8154), (2718, 8040), (3015, 7248), (3020, 7236), (3216, 6795), (3618, 6040), (3624, 6030), (4020, 5436), (4077, 5360), (4530, 4824)]