639197760

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{811}}^1\times {\mathrm{821}}^1$

素因数の和:1652

約数の個数: 112

約数和(自身を含む): 2034430272

約数和(自身を除く): 1395232512

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 811, 821, 960, 1622, 1642, 2433, 2463, 3244, 3284, 4055, 4105, 4866, 4926, 6488, 6568, 8110, 8210, 9732, 9852, 12165, 12315, 12976, 13136, 16220, 16420, 19464, 19704, 24330, 24630, 25952, 26272, 32440, 32840, 38928, 39408, 48660, 49260, 51904, 52544, 64880, 65680, 77856, 78816, 97320, 98520, 129760, 131360, 155712, 157632, 194640, 197040, 259520, 262720, 389280, 394080, 665831, 778560, 788160, 1331662, 1997493, 2663324, 3329155, 3994986, 5326648, 6658310, 7989972, 9987465, 10653296, 13316620, 15979944, 19974930, 21306592, 26633240, 31959888, 39949860, 42613184, 53266480, 63919776, 79899720, 106532960, 127839552, 159799440, 213065920, 319598880, 639197760]

約数ペア:

[(1, 639197760), (2, 319598880), (3, 213065920), (4, 159799440), (5, 127839552), (6, 106532960), (8, 79899720), (10, 63919776), (12, 53266480), (15, 42613184), (16, 39949860), (20, 31959888), (24, 26633240), (30, 21306592), (32, 19974930), (40, 15979944), (48, 13316620), (60, 10653296), (64, 9987465), (80, 7989972), (96, 6658310), (120, 5326648), (160, 3994986), (192, 3329155), (240, 2663324), (320, 1997493), (480, 1331662), (811, 788160), (821, 778560), (960, 665831), (1622, 394080), (1642, 389280), (2433, 262720), (2463, 259520), (3244, 197040), (3284, 194640), (4055, 157632), (4105, 155712), (4866, 131360), (4926, 129760), (6488, 98520), (6568, 97320), (8110, 78816), (8210, 77856), (9732, 65680), (9852, 64880), (12165, 52544), (12315, 51904), (12976, 49260), (13136, 48660), (16220, 39408), (16420, 38928), (19464, 32840), (19704, 32440), (24330, 26272), (24630, 25952)]