28772920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65393}}^1$

素因数の和:65415

約数の個数: 32

約数和(自身を含む): 70625520

約数和(自身を除く): 41852600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65393, 130786, 261572, 326965, 523144, 653930, 719323, 1307860, 1438646, 2615720, 2877292, 3596615, 5754584, 7193230, 14386460, 28772920]

約数ペア:

[(1, 28772920), (2, 14386460), (4, 7193230), (5, 5754584), (8, 3596615), (10, 2877292), (11, 2615720), (20, 1438646), (22, 1307860), (40, 719323), (44, 653930), (55, 523144), (88, 326965), (110, 261572), (220, 130786), (440, 65393)]