30689780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{701}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 70761600

約数和(自身を除く): 40071820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 199, 220, 398, 701, 796, 995, 1402, 1990, 2189, 2804, 3505, 3980, 4378, 7010, 7711, 8756, 10945, 14020, 15422, 21890, 30844, 38555, 43780, 77110, 139499, 154220, 278998, 557996, 697495, 1394990, 1534489, 2789980, 3068978, 6137956, 7672445, 15344890, 30689780]

約数ペア:

[(1, 30689780), (2, 15344890), (4, 7672445), (5, 6137956), (10, 3068978), (11, 2789980), (20, 1534489), (22, 1394990), (44, 697495), (55, 557996), (110, 278998), (199, 154220), (220, 139499), (398, 77110), (701, 43780), (796, 38555), (995, 30844), (1402, 21890), (1990, 15422), (2189, 14020), (2804, 10945), (3505, 8756), (3980, 7711), (4378, 7010)]