28734745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{439}}^1$

素因数の和:529

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 11182055

約数列:

[1, 5, 13, 19, 53, 65, 95, 247, 265, 439, 689, 1007, 1235, 2195, 3445, 5035, 5707, 8341, 13091, 23267, 28535, 41705, 65455, 108433, 116335, 302471, 442073, 542165, 1512355, 2210365, 5746949, 28734745]

約数ペア:

[(1, 28734745), (5, 5746949), (13, 2210365), (19, 1512355), (53, 542165), (65, 442073), (95, 302471), (247, 116335), (265, 108433), (439, 65455), (689, 41705), (1007, 28535), (1235, 23267), (2195, 13091), (3445, 8341), (5035, 5707)]