899218510

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{223}}^1\times {\mathrm{1117}}^1$

素因数の和:1385

約数の個数: 48

約数和(自身を含む): 1717462656

約数和(自身を除く): 818244146

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 223, 361, 446, 722, 1115, 1117, 1805, 2230, 2234, 3610, 4237, 5585, 8474, 11170, 21185, 21223, 42370, 42446, 80503, 106115, 161006, 212230, 249091, 402515, 403237, 498182, 805030, 806474, 1245455, 2016185, 2490910, 4032370, 4732729, 9465458, 23663645, 47327290, 89921851, 179843702, 449609255, 899218510]

約数ペア:

[(1, 899218510), (2, 449609255), (5, 179843702), (10, 89921851), (19, 47327290), (38, 23663645), (95, 9465458), (190, 4732729), (223, 4032370), (361, 2490910), (446, 2016185), (722, 1245455), (1115, 806474), (1117, 805030), (1805, 498182), (2230, 403237), (2234, 402515), (3610, 249091), (4237, 212230), (5585, 161006), (8474, 106115), (11170, 80503), (21185, 42446), (21223, 42370)]