1999973988

素因数分解:

$2^2\times 3^2\times {\mathrm{191}}^1\times {\mathrm{239}}^1\times {\mathrm{1217}}^1$

素因数の和:1657

約数の個数: 72

約数和(自身を含む): 5107415040

約数和(自身を除く): 3107441052

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 191, 239, 382, 478, 573, 717, 764, 956, 1146, 1217, 1434, 1719, 2151, 2292, 2434, 2868, 3438, 3651, 4302, 4868, 6876, 7302, 8604, 10953, 14604, 21906, 43812, 45649, 91298, 136947, 182596, 232447, 273894, 290863, 410841, 464894, 547788, 581726, 697341, 821682, 872589, 929788, 1163452, 1394682, 1643364, 1745178, 2092023, 2617767, 2789364, 3490356, 4184046, 5235534, 8368092, 10471068, 55554833, 111109666, 166664499, 222219332, 333328998, 499993497, 666657996, 999986994, 1999973988]

約数ペア:

[(1, 1999973988), (2, 999986994), (3, 666657996), (4, 499993497), (6, 333328998), (9, 222219332), (12, 166664499), (18, 111109666), (36, 55554833), (191, 10471068), (239, 8368092), (382, 5235534), (478, 4184046), (573, 3490356), (717, 2789364), (764, 2617767), (956, 2092023), (1146, 1745178), (1217, 1643364), (1434, 1394682), (1719, 1163452), (2151, 929788), (2292, 872589), (2434, 821682), (2868, 697341), (3438, 581726), (3651, 547788), (4302, 464894), (4868, 410841), (6876, 290863), (7302, 273894), (8604, 232447), (10953, 182596), (14604, 136947), (21906, 91298), (43812, 45649)]