20880220160

素因数分解:

$2^{13}\times 5^1\times {\mathrm{709}}^1\times {\mathrm{719}}^1$

素因数の和:1459

約数の個数: 112

約数和(自身を含む): 50249937600

約数和(自身を除く): 29369717440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 709, 719, 1024, 1280, 1418, 1438, 2048, 2560, 2836, 2876, 3545, 3595, 4096, 5120, 5672, 5752, 7090, 7190, 8192, 10240, 11344, 11504, 14180, 14380, 20480, 22688, 23008, 28360, 28760, 40960, 45376, 46016, 56720, 57520, 90752, 92032, 113440, 115040, 181504, 184064, 226880, 230080, 363008, 368128, 453760, 460160, 509771, 726016, 736256, 907520, 920320, 1019542, 1452032, 1472512, 1815040, 1840640, 2039084, 2548855, 2904064, 2945024, 3630080, 3681280, 4078168, 5097710, 5808128, 5890048, 7260160, 7362560, 8156336, 10195420, 14520320, 14725120, 16312672, 20390840, 29040640, 29450240, 32625344, 40781680, 65250688, 81563360, 130501376, 163126720, 261002752, 326253440, 522005504, 652506880, 1044011008, 1305013760, 2088022016, 2610027520, 4176044032, 5220055040, 10440110080, 20880220160]

約数ペア:

[(1, 20880220160), (2, 10440110080), (4, 5220055040), (5, 4176044032), (8, 2610027520), (10, 2088022016), (16, 1305013760), (20, 1044011008), (32, 652506880), (40, 522005504), (64, 326253440), (80, 261002752), (128, 163126720), (160, 130501376), (256, 81563360), (320, 65250688), (512, 40781680), (640, 32625344), (709, 29450240), (719, 29040640), (1024, 20390840), (1280, 16312672), (1418, 14725120), (1438, 14520320), (2048, 10195420), (2560, 8156336), (2836, 7362560), (2876, 7260160), (3545, 5890048), (3595, 5808128), (4096, 5097710), (5120, 4078168), (5672, 3681280), (5752, 3630080), (7090, 2945024), (7190, 2904064), (8192, 2548855), (10240, 2039084), (11344, 1840640), (11504, 1815040), (14180, 1472512), (14380, 1452032), (20480, 1019542), (22688, 920320), (23008, 907520), (28360, 736256), (28760, 726016), (40960, 509771), (45376, 460160), (46016, 453760), (56720, 368128), (57520, 363008), (90752, 230080), (92032, 226880), (113440, 184064), (115040, 181504)]