1996971520

素因数分解:

$2^9\times 5^1\times {\mathrm{211}}^1\times {\mathrm{3697}}^1$

素因数の和:3931

約数の個数: 80

約数和(自身を含む): 4812044688

約数和(自身を除く): 2815073168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 211, 256, 320, 422, 512, 640, 844, 1055, 1280, 1688, 2110, 2560, 3376, 3697, 4220, 6752, 7394, 8440, 13504, 14788, 16880, 18485, 27008, 29576, 33760, 36970, 54016, 59152, 67520, 73940, 108032, 118304, 135040, 147880, 236608, 270080, 295760, 473216, 540160, 591520, 780067, 946432, 1183040, 1560134, 1892864, 2366080, 3120268, 3900335, 4732160, 6240536, 7800670, 9464320, 12481072, 15601340, 24962144, 31202680, 49924288, 62405360, 99848576, 124810720, 199697152, 249621440, 399394304, 499242880, 998485760, 1996971520]

約数ペア:

[(1, 1996971520), (2, 998485760), (4, 499242880), (5, 399394304), (8, 249621440), (10, 199697152), (16, 124810720), (20, 99848576), (32, 62405360), (40, 49924288), (64, 31202680), (80, 24962144), (128, 15601340), (160, 12481072), (211, 9464320), (256, 7800670), (320, 6240536), (422, 4732160), (512, 3900335), (640, 3120268), (844, 2366080), (1055, 1892864), (1280, 1560134), (1688, 1183040), (2110, 946432), (2560, 780067), (3376, 591520), (3697, 540160), (4220, 473216), (6752, 295760), (7394, 270080), (8440, 236608), (13504, 147880), (14788, 135040), (16880, 118304), (18485, 108032), (27008, 73940), (29576, 67520), (33760, 59152), (36970, 54016)]