86801420

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1\times {\mathrm{443}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 186405408

約数和(自身を除く): 99603988

約数列:

[1, 2, 4, 5, 10, 20, 97, 101, 194, 202, 388, 404, 443, 485, 505, 886, 970, 1010, 1772, 1940, 2020, 2215, 4430, 8860, 9797, 19594, 39188, 42971, 44743, 48985, 85942, 89486, 97970, 171884, 178972, 195940, 214855, 223715, 429710, 447430, 859420, 894860, 4340071, 8680142, 17360284, 21700355, 43400710, 86801420]

約数ペア:

[(1, 86801420), (2, 43400710), (4, 21700355), (5, 17360284), (10, 8680142), (20, 4340071), (97, 894860), (101, 859420), (194, 447430), (202, 429710), (388, 223715), (404, 214855), (443, 195940), (485, 178972), (505, 171884), (886, 97970), (970, 89486), (1010, 85942), (1772, 48985), (1940, 44743), (2020, 42971), (2215, 39188), (4430, 19594), (8860, 9797)]