51271000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:170

約数の個数: 128

約数和(自身を含む): 134784000

約数和(自身を除く): 83513000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 59, 79, 88, 100, 110, 118, 125, 158, 200, 220, 236, 250, 275, 295, 316, 395, 440, 472, 500, 550, 590, 632, 649, 790, 869, 1000, 1100, 1180, 1298, 1375, 1475, 1580, 1738, 1975, 2200, 2360, 2596, 2750, 2950, 3160, 3245, 3476, 3950, 4345, 4661, 5192, 5500, 5900, 6490, 6952, 7375, 7900, 8690, 9322, 9875, 11000, 11800, 12980, 14750, 15800, 16225, 17380, 18644, 19750, 21725, 23305, 25960, 29500, 32450, 34760, 37288, 39500, 43450, 46610, 51271, 59000, 64900, 79000, 81125, 86900, 93220, 102542, 108625, 116525, 129800, 162250, 173800, 186440, 205084, 217250, 233050, 256355, 324500, 410168, 434500, 466100, 512710, 582625, 649000, 869000, 932200, 1025420, 1165250, 1281775, 2050840, 2330500, 2563550, 4661000, 5127100, 6408875, 10254200, 12817750, 25635500, 51271000]

約数ペア:

[(1, 51271000), (2, 25635500), (4, 12817750), (5, 10254200), (8, 6408875), (10, 5127100), (11, 4661000), (20, 2563550), (22, 2330500), (25, 2050840), (40, 1281775), (44, 1165250), (50, 1025420), (55, 932200), (59, 869000), (79, 649000), (88, 582625), (100, 512710), (110, 466100), (118, 434500), (125, 410168), (158, 324500), (200, 256355), (220, 233050), (236, 217250), (250, 205084), (275, 186440), (295, 173800), (316, 162250), (395, 129800), (440, 116525), (472, 108625), (500, 102542), (550, 93220), (590, 86900), (632, 81125), (649, 79000), (790, 64900), (869, 59000), (1000, 51271), (1100, 46610), (1180, 43450), (1298, 39500), (1375, 37288), (1475, 34760), (1580, 32450), (1738, 29500), (1975, 25960), (2200, 23305), (2360, 21725), (2596, 19750), (2750, 18644), (2950, 17380), (3160, 16225), (3245, 15800), (3476, 14750), (3950, 12980), (4345, 11800), (4661, 11000), (5192, 9875), (5500, 9322), (5900, 8690), (6490, 7900), (6952, 7375)]