81651680

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2729}}^1$

素因数の和:2772

約数の個数: 96

約数和(自身を含む): 222899040

約数和(自身を除く): 141247360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 160, 170, 176, 187, 220, 272, 340, 352, 374, 440, 544, 680, 748, 880, 935, 1360, 1496, 1760, 1870, 2720, 2729, 2992, 3740, 5458, 5984, 7480, 10916, 13645, 14960, 21832, 27290, 29920, 30019, 43664, 46393, 54580, 60038, 87328, 92786, 109160, 120076, 150095, 185572, 218320, 231965, 240152, 300190, 371144, 436640, 463930, 480304, 510323, 600380, 742288, 927860, 960608, 1020646, 1200760, 1484576, 1855720, 2041292, 2401520, 2551615, 3711440, 4082584, 4803040, 5103230, 7422880, 8165168, 10206460, 16330336, 20412920, 40825840, 81651680]

約数ペア:

[(1, 81651680), (2, 40825840), (4, 20412920), (5, 16330336), (8, 10206460), (10, 8165168), (11, 7422880), (16, 5103230), (17, 4803040), (20, 4082584), (22, 3711440), (32, 2551615), (34, 2401520), (40, 2041292), (44, 1855720), (55, 1484576), (68, 1200760), (80, 1020646), (85, 960608), (88, 927860), (110, 742288), (136, 600380), (160, 510323), (170, 480304), (176, 463930), (187, 436640), (220, 371144), (272, 300190), (340, 240152), (352, 231965), (374, 218320), (440, 185572), (544, 150095), (680, 120076), (748, 109160), (880, 92786), (935, 87328), (1360, 60038), (1496, 54580), (1760, 46393), (1870, 43664), (2720, 30019), (2729, 29920), (2992, 27290), (3740, 21832), (5458, 14960), (5984, 13645), (7480, 10916)]