3918040

素因数分解:

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

素因数の和:2024

約数の個数: 48

約数和(自身を含む): 10260000

約数和(自身を除く): 6341960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 1999, 3998, 7996, 9995, 13993, 15992, 19990, 27986, 39980, 55972, 69965, 79960, 97951, 111944, 139930, 195902, 279860, 391804, 489755, 559720, 783608, 979510, 1959020, 3918040]

約数ペア:

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