9980492800

素因数分解:

$2^{10}\times 5^2\times {\mathrm{197}}^1\times {\mathrm{1979}}^1$

素因数の和:2206

約数の個数: 132

約数和(自身を含む): 24877682280

約数和(自身を除く): 14897189480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 197, 200, 256, 320, 394, 400, 512, 640, 788, 800, 985, 1024, 1280, 1576, 1600, 1970, 1979, 2560, 3152, 3200, 3940, 3958, 4925, 5120, 6304, 6400, 7880, 7916, 9850, 9895, 12608, 12800, 15760, 15832, 19700, 19790, 25216, 25600, 31520, 31664, 39400, 39580, 49475, 50432, 63040, 63328, 78800, 79160, 98950, 100864, 126080, 126656, 157600, 158320, 197900, 201728, 252160, 253312, 315200, 316640, 389863, 395800, 504320, 506624, 630400, 633280, 779726, 791600, 1008640, 1013248, 1260800, 1266560, 1559452, 1583200, 1949315, 2026496, 2521600, 2533120, 3118904, 3166400, 3898630, 5043200, 5066240, 6237808, 6332800, 7797260, 9746575, 10132480, 12475616, 12665600, 15594520, 19493150, 24951232, 25331200, 31189040, 38986300, 49902464, 50662400, 62378080, 77972600, 99804928, 124756160, 155945200, 199609856, 249512320, 311890400, 399219712, 499024640, 623780800, 998049280, 1247561600, 1996098560, 2495123200, 4990246400, 9980492800]

約数ペア:

[(1, 9980492800), (2, 4990246400), (4, 2495123200), (5, 1996098560), (8, 1247561600), (10, 998049280), (16, 623780800), (20, 499024640), (25, 399219712), (32, 311890400), (40, 249512320), (50, 199609856), (64, 155945200), (80, 124756160), (100, 99804928), (128, 77972600), (160, 62378080), (197, 50662400), (200, 49902464), (256, 38986300), (320, 31189040), (394, 25331200), (400, 24951232), (512, 19493150), (640, 15594520), (788, 12665600), (800, 12475616), (985, 10132480), (1024, 9746575), (1280, 7797260), (1576, 6332800), (1600, 6237808), (1970, 5066240), (1979, 5043200), (2560, 3898630), (3152, 3166400), (3200, 3118904), (3940, 2533120), (3958, 2521600), (4925, 2026496), (5120, 1949315), (6304, 1583200), (6400, 1559452), (7880, 1266560), (7916, 1260800), (9850, 1013248), (9895, 1008640), (12608, 791600), (12800, 779726), (15760, 633280), (15832, 630400), (19700, 506624), (19790, 504320), (25216, 395800), (25600, 389863), (31520, 316640), (31664, 315200), (39400, 253312), (39580, 252160), (49475, 201728), (50432, 197900), (63040, 158320), (63328, 157600), (78800, 126656), (79160, 126080), (98950, 100864)]