81709920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{317}}^1$

素因数の和:517

約数の個数: 144

約数和(自身を含む): 281277360

約数和(自身を除く): 199567440

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, 72, 80, 90, 96, 120, 144, 160, 179, 180, 240, 288, 317, 358, 360, 480, 537, 634, 716, 720, 895, 951, 1074, 1268, 1432, 1440, 1585, 1611, 1790, 1902, 2148, 2536, 2685, 2853, 2864, 3170, 3222, 3580, 3804, 4296, 4755, 5072, 5370, 5706, 5728, 6340, 6444, 7160, 7608, 8055, 8592, 9510, 10144, 10740, 11412, 12680, 12888, 14265, 14320, 15216, 16110, 17184, 19020, 21480, 22824, 25360, 25776, 28530, 28640, 30432, 32220, 38040, 42960, 45648, 50720, 51552, 56743, 57060, 64440, 76080, 85920, 91296, 113486, 114120, 128880, 152160, 170229, 226972, 228240, 257760, 283715, 340458, 453944, 456480, 510687, 567430, 680916, 851145, 907888, 1021374, 1134860, 1361832, 1702290, 1815776, 2042748, 2269720, 2553435, 2723664, 3404580, 4085496, 4539440, 5106870, 5447328, 6809160, 8170992, 9078880, 10213740, 13618320, 16341984, 20427480, 27236640, 40854960, 81709920]

約数ペア:

[(1, 81709920), (2, 40854960), (3, 27236640), (4, 20427480), (5, 16341984), (6, 13618320), (8, 10213740), (9, 9078880), (10, 8170992), (12, 6809160), (15, 5447328), (16, 5106870), (18, 4539440), (20, 4085496), (24, 3404580), (30, 2723664), (32, 2553435), (36, 2269720), (40, 2042748), (45, 1815776), (48, 1702290), (60, 1361832), (72, 1134860), (80, 1021374), (90, 907888), (96, 851145), (120, 680916), (144, 567430), (160, 510687), (179, 456480), (180, 453944), (240, 340458), (288, 283715), (317, 257760), (358, 228240), (360, 226972), (480, 170229), (537, 152160), (634, 128880), (716, 114120), (720, 113486), (895, 91296), (951, 85920), (1074, 76080), (1268, 64440), (1432, 57060), (1440, 56743), (1585, 51552), (1611, 50720), (1790, 45648), (1902, 42960), (2148, 38040), (2536, 32220), (2685, 30432), (2853, 28640), (2864, 28530), (3170, 25776), (3222, 25360), (3580, 22824), (3804, 21480), (4296, 19020), (4755, 17184), (5072, 16110), (5370, 15216), (5706, 14320), (5728, 14265), (6340, 12888), (6444, 12680), (7160, 11412), (7608, 10740), (8055, 10144), (8592, 9510)]