280803800

素因数分解:

$2^3\times 5^2\times {\mathrm{197}}^1\times {\mathrm{7127}}^1$

素因数の和:7340

約数の個数: 48

約数和(自身を含む): 656274960

約数和(自身を除く): 375471160

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 197, 200, 394, 788, 985, 1576, 1970, 3940, 4925, 7127, 7880, 9850, 14254, 19700, 28508, 35635, 39400, 57016, 71270, 142540, 178175, 285080, 356350, 712700, 1404019, 1425400, 2808038, 5616076, 7020095, 11232152, 14040190, 28080380, 35100475, 56160760, 70200950, 140401900, 280803800]

約数ペア:

[(1, 280803800), (2, 140401900), (4, 70200950), (5, 56160760), (8, 35100475), (10, 28080380), (20, 14040190), (25, 11232152), (40, 7020095), (50, 5616076), (100, 2808038), (197, 1425400), (200, 1404019), (394, 712700), (788, 356350), (985, 285080), (1576, 178175), (1970, 142540), (3940, 71270), (4925, 57016), (7127, 39400), (7880, 35635), (9850, 28508), (14254, 19700)]