201999280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{9749}}^1$

素因数の和:9806

約数の個数: 80

約数和(自身を含む): 551304000

約数和(自身を除く): 349304720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 259, 280, 296, 370, 518, 560, 592, 740, 1036, 1295, 1480, 2072, 2590, 2960, 4144, 5180, 9749, 10360, 19498, 20720, 38996, 48745, 68243, 77992, 97490, 136486, 155984, 194980, 272972, 341215, 360713, 389960, 545944, 682430, 721426, 779920, 1091888, 1364860, 1442852, 1803565, 2524991, 2729720, 2885704, 3607130, 5049982, 5459440, 5771408, 7214260, 10099964, 12624955, 14428520, 20199928, 25249910, 28857040, 40399856, 50499820, 100999640, 201999280]

約数ペア:

[(1, 201999280), (2, 100999640), (4, 50499820), (5, 40399856), (7, 28857040), (8, 25249910), (10, 20199928), (14, 14428520), (16, 12624955), (20, 10099964), (28, 7214260), (35, 5771408), (37, 5459440), (40, 5049982), (56, 3607130), (70, 2885704), (74, 2729720), (80, 2524991), (112, 1803565), (140, 1442852), (148, 1364860), (185, 1091888), (259, 779920), (280, 721426), (296, 682430), (370, 545944), (518, 389960), (560, 360713), (592, 341215), (740, 272972), (1036, 194980), (1295, 155984), (1480, 136486), (2072, 97490), (2590, 77992), (2960, 68243), (4144, 48745), (5180, 38996), (9749, 20720), (10360, 19498)]