20512677172

素因数分解:

$2^2\times {\mathrm{13}}^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2857}}^1$

素因数の和:2962

約数の個数: 96

約数和(自身を含む): 41900566400

約数和(自身を除く): 21387889228

約数列:

[1, 2, 4, 13, 19, 26, 38, 43, 52, 76, 86, 169, 172, 247, 338, 494, 559, 676, 817, 988, 1118, 1634, 2197, 2236, 2857, 3211, 3268, 4394, 5714, 6422, 7267, 8788, 10621, 11428, 12844, 14534, 21242, 29068, 37141, 41743, 42484, 54283, 74282, 83486, 94471, 108566, 122851, 138073, 148564, 166972, 188942, 217132, 245702, 276146, 377884, 482833, 491404, 552292, 705679, 965666, 1411358, 1597063, 1794949, 1931332, 2334169, 2822716, 3194126, 3589898, 4668338, 6276829, 6388252, 7179796, 9173827, 9336676, 12553658, 18347654, 20761819, 25107316, 30344197, 36695308, 41523638, 60688394, 83047276, 119259751, 121376788, 238519502, 269903647, 394474561, 477039004, 539807294, 788949122, 1079614588, 1577898244, 5128169293, 10256338586, 20512677172]

約数ペア:

[(1, 20512677172), (2, 10256338586), (4, 5128169293), (13, 1577898244), (19, 1079614588), (26, 788949122), (38, 539807294), (43, 477039004), (52, 394474561), (76, 269903647), (86, 238519502), (169, 121376788), (172, 119259751), (247, 83047276), (338, 60688394), (494, 41523638), (559, 36695308), (676, 30344197), (817, 25107316), (988, 20761819), (1118, 18347654), (1634, 12553658), (2197, 9336676), (2236, 9173827), (2857, 7179796), (3211, 6388252), (3268, 6276829), (4394, 4668338), (5714, 3589898), (6422, 3194126), (7267, 2822716), (8788, 2334169), (10621, 1931332), (11428, 1794949), (12844, 1597063), (14534, 1411358), (21242, 965666), (29068, 705679), (37141, 552292), (41743, 491404), (42484, 482833), (54283, 377884), (74282, 276146), (83486, 245702), (94471, 217132), (108566, 188942), (122851, 166972), (138073, 148564)]