4057970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1999}}^1$

素因数の和:2042

約数の個数: 32

約数和(自身を含む): 8640000

約数和(自身を除く): 4582030

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 1999, 2030, 3998, 9995, 13993, 19990, 27986, 57971, 69965, 115942, 139930, 289855, 405797, 579710, 811594, 2028985, 4057970]

約数ペア:

[(1, 4057970), (2, 2028985), (5, 811594), (7, 579710), (10, 405797), (14, 289855), (29, 139930), (35, 115942), (58, 69965), (70, 57971), (145, 27986), (203, 19990), (290, 13993), (406, 9995), (1015, 3998), (1999, 2030)]