172393760

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1999}}^1$

素因数の和:2039

約数の個数: 144

約数和(自身を含む): 517104000

約数和(自身を除く): 344710240

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 160, 176, 196, 220, 224, 245, 280, 308, 352, 385, 392, 440, 490, 539, 560, 616, 770, 784, 880, 980, 1078, 1120, 1232, 1540, 1568, 1760, 1960, 1999, 2156, 2464, 2695, 3080, 3920, 3998, 4312, 5390, 6160, 7840, 7996, 8624, 9995, 10780, 12320, 13993, 15992, 17248, 19990, 21560, 21989, 27986, 31984, 39980, 43120, 43978, 55972, 63968, 69965, 79960, 86240, 87956, 97951, 109945, 111944, 139930, 153923, 159920, 175912, 195902, 219890, 223888, 279860, 307846, 319840, 351824, 391804, 439780, 447776, 489755, 559720, 615692, 703648, 769615, 783608, 879560, 979510, 1077461, 1119440, 1231384, 1539230, 1567216, 1759120, 1959020, 2154922, 2238880, 2462768, 3078460, 3134432, 3518240, 3918040, 4309844, 4925536, 5387305, 6156920, 7836080, 8619688, 10774610, 12313840, 15672160, 17239376, 21549220, 24627680, 34478752, 43098440, 86196880, 172393760]

約数ペア:

[(1, 172393760), (2, 86196880), (4, 43098440), (5, 34478752), (7, 24627680), (8, 21549220), (10, 17239376), (11, 15672160), (14, 12313840), (16, 10774610), (20, 8619688), (22, 7836080), (28, 6156920), (32, 5387305), (35, 4925536), (40, 4309844), (44, 3918040), (49, 3518240), (55, 3134432), (56, 3078460), (70, 2462768), (77, 2238880), (80, 2154922), (88, 1959020), (98, 1759120), (110, 1567216), (112, 1539230), (140, 1231384), (154, 1119440), (160, 1077461), (176, 979510), (196, 879560), (220, 783608), (224, 769615), (245, 703648), (280, 615692), (308, 559720), (352, 489755), (385, 447776), (392, 439780), (440, 391804), (490, 351824), (539, 319840), (560, 307846), (616, 279860), (770, 223888), (784, 219890), (880, 195902), (980, 175912), (1078, 159920), (1120, 153923), (1232, 139930), (1540, 111944), (1568, 109945), (1760, 97951), (1960, 87956), (1999, 86240), (2156, 79960), (2464, 69965), (2695, 63968), (3080, 55972), (3920, 43978), (3998, 43120), (4312, 39980), (5390, 31984), (6160, 27986), (7840, 21989), (7996, 21560), (8624, 19990), (9995, 17248), (10780, 15992), (12320, 13993)]