164617775

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 244032000

約数和(自身を除く): 79414225

約数列:

[1, 5, 7, 25, 29, 35, 145, 163, 175, 199, 203, 725, 815, 995, 1015, 1141, 1393, 4075, 4727, 4975, 5075, 5705, 5771, 6965, 23635, 28525, 28855, 32437, 33089, 34825, 40397, 118175, 144275, 162185, 165445, 201985, 227059, 810925, 827225, 940673, 1009925, 1135295, 4703365, 5676475, 6584711, 23516825, 32923555, 164617775]

約数ペア:

[(1, 164617775), (5, 32923555), (7, 23516825), (25, 6584711), (29, 5676475), (35, 4703365), (145, 1135295), (163, 1009925), (175, 940673), (199, 827225), (203, 810925), (725, 227059), (815, 201985), (995, 165445), (1015, 162185), (1141, 144275), (1393, 118175), (4075, 40397), (4727, 34825), (4975, 33089), (5075, 32437), (5705, 28855), (5771, 28525), (6965, 23635)]