12864380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20749}}^1$

素因数の和:20789

約数の個数: 24

約数和(自身を含む): 27888000

約数和(自身を除く): 15023620

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 20749, 41498, 82996, 103745, 207490, 414980, 643219, 1286438, 2572876, 3216095, 6432190, 12864380]

約数ペア:

[(1, 12864380), (2, 6432190), (4, 3216095), (5, 2572876), (10, 1286438), (20, 643219), (31, 414980), (62, 207490), (124, 103745), (155, 82996), (310, 41498), (620, 20749)]