198840530

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{1999}}^1$

素因数の和:2056

約数の個数: 64

約数和(自身を含む): 432000000

約数和(自身を除く): 233159470

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 49, 58, 70, 98, 145, 203, 245, 290, 343, 406, 490, 686, 1015, 1421, 1715, 1999, 2030, 2842, 3430, 3998, 7105, 9947, 9995, 13993, 14210, 19894, 19990, 27986, 49735, 57971, 69965, 97951, 99470, 115942, 139930, 195902, 289855, 405797, 489755, 579710, 685657, 811594, 979510, 1371314, 2028985, 2840579, 3428285, 4057970, 5681158, 6856570, 14202895, 19884053, 28405790, 39768106, 99420265, 198840530]

約数ペア:

[(1, 198840530), (2, 99420265), (5, 39768106), (7, 28405790), (10, 19884053), (14, 14202895), (29, 6856570), (35, 5681158), (49, 4057970), (58, 3428285), (70, 2840579), (98, 2028985), (145, 1371314), (203, 979510), (245, 811594), (290, 685657), (343, 579710), (406, 489755), (490, 405797), (686, 289855), (1015, 195902), (1421, 139930), (1715, 115942), (1999, 99470), (2030, 97951), (2842, 69965), (3430, 57971), (3998, 49735), (7105, 27986), (9947, 19990), (9995, 19894), (13993, 14210)]