200971520

素因数分解:

$2^8\times 5^1\times {\mathrm{197}}^1\times {\mathrm{797}}^1$

素因数の和:1015

約数の個数: 72

約数和(自身を含む): 484440264

約数和(自身を除く): 283468744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 197, 256, 320, 394, 640, 788, 797, 985, 1280, 1576, 1594, 1970, 3152, 3188, 3940, 3985, 6304, 6376, 7880, 7970, 12608, 12752, 15760, 15940, 25216, 25504, 31520, 31880, 50432, 51008, 63040, 63760, 102016, 126080, 127520, 157009, 204032, 252160, 255040, 314018, 510080, 628036, 785045, 1020160, 1256072, 1570090, 2512144, 3140180, 5024288, 6280360, 10048576, 12560720, 20097152, 25121440, 40194304, 50242880, 100485760, 200971520]

約数ペア:

[(1, 200971520), (2, 100485760), (4, 50242880), (5, 40194304), (8, 25121440), (10, 20097152), (16, 12560720), (20, 10048576), (32, 6280360), (40, 5024288), (64, 3140180), (80, 2512144), (128, 1570090), (160, 1256072), (197, 1020160), (256, 785045), (320, 628036), (394, 510080), (640, 314018), (788, 255040), (797, 252160), (985, 204032), (1280, 157009), (1576, 127520), (1594, 126080), (1970, 102016), (3152, 63760), (3188, 63040), (3940, 51008), (3985, 50432), (6304, 31880), (6376, 31520), (7880, 25504), (7970, 25216), (12608, 15940), (12752, 15760)]