28780101280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{25696519}}^1$

素因数の和:25696541

約数の個数: 48

約数和(自身を含む): 77706276480

約数和(自身を除く): 48926175200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 25696519, 51393038, 102786076, 128482595, 179875633, 205572152, 256965190, 359751266, 411144304, 513930380, 719502532, 822288608, 899378165, 1027860760, 1439005064, 1798756330, 2055721520, 2878010128, 3597512660, 4111443040, 5756020256, 7195025320, 14390050640, 28780101280]

約数ペア:

[(1, 28780101280), (2, 14390050640), (4, 7195025320), (5, 5756020256), (7, 4111443040), (8, 3597512660), (10, 2878010128), (14, 2055721520), (16, 1798756330), (20, 1439005064), (28, 1027860760), (32, 899378165), (35, 822288608), (40, 719502532), (56, 513930380), (70, 411144304), (80, 359751266), (112, 256965190), (140, 205572152), (160, 179875633), (224, 128482595), (280, 102786076), (560, 51393038), (1120, 25696519)]