28796680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65447}}^1$

素因数の和:65469

約数の個数: 32

約数和(自身を含む): 70683840

約数和(自身を除く): 41887160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65447, 130894, 261788, 327235, 523576, 654470, 719917, 1308940, 1439834, 2617880, 2879668, 3599585, 5759336, 7199170, 14398340, 28796680]

約数ペア:

[(1, 28796680), (2, 14398340), (4, 7199170), (5, 5759336), (8, 3599585), (10, 2879668), (11, 2617880), (20, 1439834), (22, 1308940), (40, 719917), (44, 654470), (55, 523576), (88, 327235), (110, 261788), (220, 130894), (440, 65447)]