81537840

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{12583}}^1$

素因数の和:12608

約数の個数: 100

約数和(自身を含む): 283215504

約数和(自身を除く): 201677664

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, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 12583, 25166, 37749, 50332, 62915, 75498, 100664, 113247, 125830, 150996, 188745, 201328, 226494, 251660, 301992, 339741, 377490, 452988, 503320, 566235, 603984, 679482, 754980, 905976, 1006640, 1019223, 1132470, 1358964, 1509960, 1698705, 1811952, 2038446, 2264940, 2717928, 3019920, 3397410, 4076892, 4529880, 5096115, 5435856, 6794820, 8153784, 9059760, 10192230, 13589640, 16307568, 20384460, 27179280, 40768920, 81537840]

約数ペア:

[(1, 81537840), (2, 40768920), (3, 27179280), (4, 20384460), (5, 16307568), (6, 13589640), (8, 10192230), (9, 9059760), (10, 8153784), (12, 6794820), (15, 5435856), (16, 5096115), (18, 4529880), (20, 4076892), (24, 3397410), (27, 3019920), (30, 2717928), (36, 2264940), (40, 2038446), (45, 1811952), (48, 1698705), (54, 1509960), (60, 1358964), (72, 1132470), (80, 1019223), (81, 1006640), (90, 905976), (108, 754980), (120, 679482), (135, 603984), (144, 566235), (162, 503320), (180, 452988), (216, 377490), (240, 339741), (270, 301992), (324, 251660), (360, 226494), (405, 201328), (432, 188745), (540, 150996), (648, 125830), (720, 113247), (810, 100664), (1080, 75498), (1296, 62915), (1620, 50332), (2160, 37749), (3240, 25166), (6480, 12583)]