42538720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1999}}^1$

素因数の和:2040

約数の個数: 96

約数和(自身を含む): 120960000

約数和(自身を除く): 78421280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 160, 190, 224, 266, 280, 304, 380, 532, 560, 608, 665, 760, 1064, 1120, 1330, 1520, 1999, 2128, 2660, 3040, 3998, 4256, 5320, 7996, 9995, 10640, 13993, 15992, 19990, 21280, 27986, 31984, 37981, 39980, 55972, 63968, 69965, 75962, 79960, 111944, 139930, 151924, 159920, 189905, 223888, 265867, 279860, 303848, 319840, 379810, 447776, 531734, 559720, 607696, 759620, 1063468, 1119440, 1215392, 1329335, 1519240, 2126936, 2238880, 2658670, 3038480, 4253872, 5317340, 6076960, 8507744, 10634680, 21269360, 42538720]

約数ペア:

[(1, 42538720), (2, 21269360), (4, 10634680), (5, 8507744), (7, 6076960), (8, 5317340), (10, 4253872), (14, 3038480), (16, 2658670), (19, 2238880), (20, 2126936), (28, 1519240), (32, 1329335), (35, 1215392), (38, 1119440), (40, 1063468), (56, 759620), (70, 607696), (76, 559720), (80, 531734), (95, 447776), (112, 379810), (133, 319840), (140, 303848), (152, 279860), (160, 265867), (190, 223888), (224, 189905), (266, 159920), (280, 151924), (304, 139930), (380, 111944), (532, 79960), (560, 75962), (608, 69965), (665, 63968), (760, 55972), (1064, 39980), (1120, 37981), (1330, 31984), (1520, 27986), (1999, 21280), (2128, 19990), (2660, 15992), (3040, 13993), (3998, 10640), (4256, 9995), (5320, 7996)]