2000637440

素因数分解:

$2^9\times 5^1\times {\mathrm{197}}^1\times {\mathrm{3967}}^1$

素因数の和:4187

約数の個数: 80

約数和(自身を含む): 4822405632

約数和(自身を除く): 2821768192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 197, 256, 320, 394, 512, 640, 788, 985, 1280, 1576, 1970, 2560, 3152, 3940, 3967, 6304, 7880, 7934, 12608, 15760, 15868, 19835, 25216, 31520, 31736, 39670, 50432, 63040, 63472, 79340, 100864, 126080, 126944, 158680, 252160, 253888, 317360, 504320, 507776, 634720, 781499, 1015552, 1269440, 1562998, 2031104, 2538880, 3125996, 3907495, 5077760, 6251992, 7814990, 10155520, 12503984, 15629980, 25007968, 31259960, 50015936, 62519920, 100031872, 125039840, 200063744, 250079680, 400127488, 500159360, 1000318720, 2000637440]

約数ペア:

[(1, 2000637440), (2, 1000318720), (4, 500159360), (5, 400127488), (8, 250079680), (10, 200063744), (16, 125039840), (20, 100031872), (32, 62519920), (40, 50015936), (64, 31259960), (80, 25007968), (128, 15629980), (160, 12503984), (197, 10155520), (256, 7814990), (320, 6251992), (394, 5077760), (512, 3907495), (640, 3125996), (788, 2538880), (985, 2031104), (1280, 1562998), (1576, 1269440), (1970, 1015552), (2560, 781499), (3152, 634720), (3940, 507776), (3967, 504320), (6304, 317360), (7880, 253888), (7934, 252160), (12608, 158680), (15760, 126944), (15868, 126080), (19835, 100864), (25216, 79340), (31520, 63472), (31736, 63040), (39670, 50432)]