8115940

素因数分解:

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

素因数の和:2044

約数の個数: 48

約数和(自身を含む): 20160000

約数和(自身を除く): 12044060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 1999, 2030, 3998, 4060, 7996, 9995, 13993, 19990, 27986, 39980, 55972, 57971, 69965, 115942, 139930, 231884, 279860, 289855, 405797, 579710, 811594, 1159420, 1623188, 2028985, 4057970, 8115940]

約数ペア:

[(1, 8115940), (2, 4057970), (4, 2028985), (5, 1623188), (7, 1159420), (10, 811594), (14, 579710), (20, 405797), (28, 289855), (29, 279860), (35, 231884), (58, 139930), (70, 115942), (116, 69965), (140, 57971), (145, 55972), (203, 39980), (290, 27986), (406, 19990), (580, 13993), (812, 9995), (1015, 7996), (1999, 4060), (2030, 3998)]