1959020

素因数分解:

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

素因数の和:2022

約数の個数: 36

約数和(自身を含む): 4788000

約数和(自身を除く): 2828980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 1999, 3998, 7996, 9995, 13993, 19990, 27986, 39980, 55972, 69965, 97951, 139930, 195902, 279860, 391804, 489755, 979510, 1959020]

約数ペア:

[(1, 1959020), (2, 979510), (4, 489755), (5, 391804), (7, 279860), (10, 195902), (14, 139930), (20, 97951), (28, 69965), (35, 55972), (49, 39980), (70, 27986), (98, 19990), (140, 13993), (196, 9995), (245, 7996), (490, 3998), (980, 1999)]