19720741320

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{110221}}^1$

素因数の和:110316

約数の個数: 192

約数和(自身を含む): 74280810240

約数和(自身を除く): 54560068920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 71, 72, 84, 90, 105, 120, 126, 140, 142, 168, 180, 210, 213, 252, 280, 284, 315, 355, 360, 420, 426, 497, 504, 568, 630, 639, 710, 840, 852, 994, 1065, 1260, 1278, 1420, 1491, 1704, 1988, 2130, 2485, 2520, 2556, 2840, 2982, 3195, 3976, 4260, 4473, 4970, 5112, 5964, 6390, 7455, 8520, 8946, 9940, 11928, 12780, 14910, 17892, 19880, 22365, 25560, 29820, 35784, 44730, 59640, 89460, 110221, 178920, 220442, 330663, 440884, 551105, 661326, 771547, 881768, 991989, 1102210, 1322652, 1543094, 1653315, 1983978, 2204420, 2314641, 2645304, 3086188, 3306630, 3857735, 3967956, 4408840, 4629282, 4959945, 6172376, 6613260, 6943923, 7715470, 7825691, 7935912, 9258564, 9919890, 11573205, 13226520, 13887846, 15430940, 15651382, 18517128, 19839780, 23146410, 23477073, 27775692, 30861880, 31302764, 34719615, 39128455, 39679560, 46292820, 46954146, 54779837, 55551384, 62605528, 69439230, 70431219, 78256910, 92585640, 93908292, 109559674, 117385365, 138878460, 140862438, 156513820, 164339511, 187816584, 219119348, 234770730, 273899185, 277756920, 281724876, 313027640, 328679022, 352156095, 438238696, 469541460, 493018533, 547798370, 563449752, 657358044, 704312190, 821697555, 939082920, 986037066, 1095596740, 1314716088, 1408624380, 1643395110, 1972074132, 2191193480, 2465092665, 2817248760, 3286790220, 3944148264, 4930185330, 6573580440, 9860370660, 19720741320]

約数ペア:

[(1, 19720741320), (2, 9860370660), (3, 6573580440), (4, 4930185330), (5, 3944148264), (6, 3286790220), (7, 2817248760), (8, 2465092665), (9, 2191193480), (10, 1972074132), (12, 1643395110), (14, 1408624380), (15, 1314716088), (18, 1095596740), (20, 986037066), (21, 939082920), (24, 821697555), (28, 704312190), (30, 657358044), (35, 563449752), (36, 547798370), (40, 493018533), (42, 469541460), (45, 438238696), (56, 352156095), (60, 328679022), (63, 313027640), (70, 281724876), (71, 277756920), (72, 273899185), (84, 234770730), (90, 219119348), (105, 187816584), (120, 164339511), (126, 156513820), (140, 140862438), (142, 138878460), (168, 117385365), (180, 109559674), (210, 93908292), (213, 92585640), (252, 78256910), (280, 70431219), (284, 69439230), (315, 62605528), (355, 55551384), (360, 54779837), (420, 46954146), (426, 46292820), (497, 39679560), (504, 39128455), (568, 34719615), (630, 31302764), (639, 30861880), (710, 27775692), (840, 23477073), (852, 23146410), (994, 19839780), (1065, 18517128), (1260, 15651382), (1278, 15430940), (1420, 13887846), (1491, 13226520), (1704, 11573205), (1988, 9919890), (2130, 9258564), (2485, 7935912), (2520, 7825691), (2556, 7715470), (2840, 6943923), (2982, 6613260), (3195, 6172376), (3976, 4959945), (4260, 4629282), (4473, 4408840), (4970, 3967956), (5112, 3857735), (5964, 3306630), (6390, 3086188), (7455, 2645304), (8520, 2314641), (8946, 2204420), (9940, 1983978), (11928, 1653315), (12780, 1543094), (14910, 1322652), (17892, 1102210), (19880, 991989), (22365, 881768), (25560, 771547), (29820, 661326), (35784, 551105), (44730, 440884), (59640, 330663), (89460, 220442), (110221, 178920)]