16817125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:238

約数の個数: 32

約数和(自身を含む): 23063040

約数和(自身を除く): 6245915

約数列:

[1, 5, 13, 25, 65, 79, 125, 131, 325, 395, 655, 1027, 1625, 1703, 1975, 3275, 5135, 8515, 9875, 10349, 16375, 25675, 42575, 51745, 128375, 134537, 212875, 258725, 672685, 1293625, 3363425, 16817125]

約数ペア:

[(1, 16817125), (5, 3363425), (13, 1293625), (25, 672685), (65, 258725), (79, 212875), (125, 134537), (131, 128375), (325, 51745), (395, 42575), (655, 25675), (1027, 16375), (1625, 10349), (1703, 9875), (1975, 8515), (3275, 5135)]