28873520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27763}}^1$

素因数の和:27789

約数の個数: 40

約数和(自身を含む): 72297456

約数和(自身を除く): 43423936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 27763, 55526, 111052, 138815, 222104, 277630, 360919, 444208, 555260, 721838, 1110520, 1443676, 1804595, 2221040, 2887352, 3609190, 5774704, 7218380, 14436760, 28873520]

約数ペア:

[(1, 28873520), (2, 14436760), (4, 7218380), (5, 5774704), (8, 3609190), (10, 2887352), (13, 2221040), (16, 1804595), (20, 1443676), (26, 1110520), (40, 721838), (52, 555260), (65, 444208), (80, 360919), (104, 277630), (130, 222104), (208, 138815), (260, 111052), (520, 55526), (1040, 27763)]