666924700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:157

約数の個数: 216

約数和(自身を含む): 1728222720

約数和(自身を除く): 1061298020

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 31, 38, 50, 52, 62, 65, 67, 76, 95, 100, 124, 130, 134, 155, 169, 190, 247, 260, 268, 310, 325, 335, 338, 380, 403, 475, 494, 589, 620, 650, 670, 676, 775, 806, 845, 871, 950, 988, 1178, 1235, 1273, 1300, 1340, 1550, 1612, 1675, 1690, 1742, 1900, 2015, 2077, 2356, 2470, 2546, 2945, 3100, 3211, 3350, 3380, 3484, 4030, 4154, 4225, 4355, 4940, 5092, 5239, 5890, 6175, 6365, 6422, 6700, 7657, 8060, 8308, 8450, 8710, 10075, 10385, 10478, 11323, 11780, 12350, 12730, 12844, 14725, 15314, 16055, 16549, 16900, 17420, 20150, 20770, 20956, 21775, 22646, 24700, 25460, 26195, 27001, 29450, 30628, 31825, 32110, 33098, 38285, 39463, 40300, 41540, 43550, 45292, 51925, 52390, 54002, 56615, 58900, 63650, 64220, 66196, 76570, 78926, 80275, 82745, 87100, 99541, 103850, 104780, 108004, 113230, 127300, 130975, 135005, 153140, 157852, 160550, 165490, 191425, 197315, 199082, 207700, 215137, 226460, 261950, 270010, 283075, 321100, 330980, 351013, 382850, 394630, 398164, 413725, 430274, 497705, 513019, 523900, 540020, 566150, 675025, 702026, 765700, 789260, 827450, 860548, 986575, 995410, 1026038, 1075685, 1132300, 1350050, 1404052, 1654900, 1755065, 1973150, 1990820, 2052076, 2151370, 2488525, 2565095, 2700100, 3510130, 3946300, 4302740, 4977050, 5130190, 5378425, 6669247, 7020260, 8775325, 9954100, 10260380, 10756850, 12825475, 13338494, 17550650, 21513700, 25650950, 26676988, 33346235, 35101300, 51301900, 66692470, 133384940, 166731175, 333462350, 666924700]

約数ペア:

[(1, 666924700), (2, 333462350), (4, 166731175), (5, 133384940), (10, 66692470), (13, 51301900), (19, 35101300), (20, 33346235), (25, 26676988), (26, 25650950), (31, 21513700), (38, 17550650), (50, 13338494), (52, 12825475), (62, 10756850), (65, 10260380), (67, 9954100), (76, 8775325), (95, 7020260), (100, 6669247), (124, 5378425), (130, 5130190), (134, 4977050), (155, 4302740), (169, 3946300), (190, 3510130), (247, 2700100), (260, 2565095), (268, 2488525), (310, 2151370), (325, 2052076), (335, 1990820), (338, 1973150), (380, 1755065), (403, 1654900), (475, 1404052), (494, 1350050), (589, 1132300), (620, 1075685), (650, 1026038), (670, 995410), (676, 986575), (775, 860548), (806, 827450), (845, 789260), (871, 765700), (950, 702026), (988, 675025), (1178, 566150), (1235, 540020), (1273, 523900), (1300, 513019), (1340, 497705), (1550, 430274), (1612, 413725), (1675, 398164), (1690, 394630), (1742, 382850), (1900, 351013), (2015, 330980), (2077, 321100), (2356, 283075), (2470, 270010), (2546, 261950), (2945, 226460), (3100, 215137), (3211, 207700), (3350, 199082), (3380, 197315), (3484, 191425), (4030, 165490), (4154, 160550), (4225, 157852), (4355, 153140), (4940, 135005), (5092, 130975), (5239, 127300), (5890, 113230), (6175, 108004), (6365, 104780), (6422, 103850), (6700, 99541), (7657, 87100), (8060, 82745), (8308, 80275), (8450, 78926), (8710, 76570), (10075, 66196), (10385, 64220), (10478, 63650), (11323, 58900), (11780, 56615), (12350, 54002), (12730, 52390), (12844, 51925), (14725, 45292), (15314, 43550), (16055, 41540), (16549, 40300), (16900, 39463), (17420, 38285), (20150, 33098), (20770, 32110), (20956, 31825), (21775, 30628), (22646, 29450), (24700, 27001), (25460, 26195)]