7836080

素因数分解:

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

素因数の和:2026

約数の個数: 60

約数和(自身を含む): 21204000

約数和(自身を除く): 13367920

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, 392, 490, 560, 784, 980, 1960, 1999, 3920, 3998, 7996, 9995, 13993, 15992, 19990, 27986, 31984, 39980, 55972, 69965, 79960, 97951, 111944, 139930, 159920, 195902, 223888, 279860, 391804, 489755, 559720, 783608, 979510, 1119440, 1567216, 1959020, 3918040, 7836080]

約数ペア:

[(1, 7836080), (2, 3918040), (4, 1959020), (5, 1567216), (7, 1119440), (8, 979510), (10, 783608), (14, 559720), (16, 489755), (20, 391804), (28, 279860), (35, 223888), (40, 195902), (49, 159920), (56, 139930), (70, 111944), (80, 97951), (98, 79960), (112, 69965), (140, 55972), (196, 39980), (245, 31984), (280, 27986), (392, 19990), (490, 15992), (560, 13993), (784, 9995), (980, 7996), (1960, 3998), (1999, 3920)]