19735400

素因数分解:

$2^3\times 5^2\times {\mathrm{101}}^1\times {\mathrm{977}}^1$

素因数の和:1094

約数の個数: 48

約数和(自身を含む): 46386540

約数和(自身を除く): 26651140

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 101, 200, 202, 404, 505, 808, 977, 1010, 1954, 2020, 2525, 3908, 4040, 4885, 5050, 7816, 9770, 10100, 19540, 20200, 24425, 39080, 48850, 97700, 98677, 195400, 197354, 394708, 493385, 789416, 986770, 1973540, 2466925, 3947080, 4933850, 9867700, 19735400]

約数ペア:

[(1, 19735400), (2, 9867700), (4, 4933850), (5, 3947080), (8, 2466925), (10, 1973540), (20, 986770), (25, 789416), (40, 493385), (50, 394708), (100, 197354), (101, 195400), (200, 98677), (202, 97700), (404, 48850), (505, 39080), (808, 24425), (977, 20200), (1010, 19540), (1954, 10100), (2020, 9770), (2525, 7816), (3908, 5050), (4040, 4885)]