31213040

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3863}}^1$

素因数の和:3977

約数の個数: 40

約数和(自身を含む): 73307808

約数和(自身を除く): 42094768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 3863, 4040, 7726, 8080, 15452, 19315, 30904, 38630, 61808, 77260, 154520, 309040, 390163, 780326, 1560652, 1950815, 3121304, 3901630, 6242608, 7803260, 15606520, 31213040]

約数ペア:

[(1, 31213040), (2, 15606520), (4, 7803260), (5, 6242608), (8, 3901630), (10, 3121304), (16, 1950815), (20, 1560652), (40, 780326), (80, 390163), (101, 309040), (202, 154520), (404, 77260), (505, 61808), (808, 38630), (1010, 30904), (1616, 19315), (2020, 15452), (3863, 8080), (4040, 7726)]