28811480

素因数分解:

$2^3\times 5^1\times {\mathrm{659}}^1\times {\mathrm{1093}}^1$

素因数の和:1763

約数の個数: 32

約数和(自身を含む): 64983600

約数和(自身を除く): 36172120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 659, 1093, 1318, 2186, 2636, 3295, 4372, 5272, 5465, 6590, 8744, 10930, 13180, 21860, 26360, 43720, 720287, 1440574, 2881148, 3601435, 5762296, 7202870, 14405740, 28811480]

約数ペア:

[(1, 28811480), (2, 14405740), (4, 7202870), (5, 5762296), (8, 3601435), (10, 2881148), (20, 1440574), (40, 720287), (659, 43720), (1093, 26360), (1318, 21860), (2186, 13180), (2636, 10930), (3295, 8744), (4372, 6590), (5272, 5465)]