51747640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:245

約数の個数: 128

約数和(自身を含む): 143078400

約数和(自身を除く): 91330760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 71, 76, 95, 133, 137, 140, 142, 152, 190, 266, 274, 280, 284, 355, 380, 497, 532, 548, 568, 665, 685, 710, 760, 959, 994, 1064, 1096, 1330, 1349, 1370, 1420, 1918, 1988, 2485, 2603, 2660, 2698, 2740, 2840, 3836, 3976, 4795, 4970, 5206, 5320, 5396, 5480, 6745, 7672, 9443, 9590, 9727, 9940, 10412, 10792, 13015, 13490, 18221, 18886, 19180, 19454, 19880, 20824, 26030, 26980, 36442, 37772, 38360, 38908, 47215, 48635, 52060, 53960, 68089, 72884, 75544, 77816, 91105, 94430, 97270, 104120, 136178, 145768, 182210, 184813, 188860, 194540, 272356, 340445, 364420, 369626, 377720, 389080, 544712, 680890, 728840, 739252, 924065, 1293691, 1361780, 1478504, 1848130, 2587382, 2723560, 3696260, 5174764, 6468455, 7392520, 10349528, 12936910, 25873820, 51747640]

約数ペア:

[(1, 51747640), (2, 25873820), (4, 12936910), (5, 10349528), (7, 7392520), (8, 6468455), (10, 5174764), (14, 3696260), (19, 2723560), (20, 2587382), (28, 1848130), (35, 1478504), (38, 1361780), (40, 1293691), (56, 924065), (70, 739252), (71, 728840), (76, 680890), (95, 544712), (133, 389080), (137, 377720), (140, 369626), (142, 364420), (152, 340445), (190, 272356), (266, 194540), (274, 188860), (280, 184813), (284, 182210), (355, 145768), (380, 136178), (497, 104120), (532, 97270), (548, 94430), (568, 91105), (665, 77816), (685, 75544), (710, 72884), (760, 68089), (959, 53960), (994, 52060), (1064, 48635), (1096, 47215), (1330, 38908), (1349, 38360), (1370, 37772), (1420, 36442), (1918, 26980), (1988, 26030), (2485, 20824), (2603, 19880), (2660, 19454), (2698, 19180), (2740, 18886), (2840, 18221), (3836, 13490), (3976, 13015), (4795, 10792), (4970, 10412), (5206, 9940), (5320, 9727), (5396, 9590), (5480, 9443), (6745, 7672)]