54852560

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{1999}}^1$

素因数の和:2033

約数の個数: 80

約数和(自身を含む): 148800000

約数和(自身を除く): 93947440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 1999, 2744, 3430, 3920, 3998, 5488, 6860, 7996, 9995, 13720, 13993, 15992, 19990, 27440, 27986, 31984, 39980, 55972, 69965, 79960, 97951, 111944, 139930, 159920, 195902, 223888, 279860, 391804, 489755, 559720, 685657, 783608, 979510, 1119440, 1371314, 1567216, 1959020, 2742628, 3428285, 3918040, 5485256, 6856570, 7836080, 10970512, 13713140, 27426280, 54852560]

約数ペア:

[(1, 54852560), (2, 27426280), (4, 13713140), (5, 10970512), (7, 7836080), (8, 6856570), (10, 5485256), (14, 3918040), (16, 3428285), (20, 2742628), (28, 1959020), (35, 1567216), (40, 1371314), (49, 1119440), (56, 979510), (70, 783608), (80, 685657), (98, 559720), (112, 489755), (140, 391804), (196, 279860), (245, 223888), (280, 195902), (343, 159920), (392, 139930), (490, 111944), (560, 97951), (686, 79960), (784, 69965), (980, 55972), (1372, 39980), (1715, 31984), (1960, 27986), (1999, 27440), (2744, 19990), (3430, 15992), (3920, 13993), (3998, 13720), (5488, 9995), (6860, 7996)]