28640812

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{431}}^1\times {\mathrm{449}}^1$

素因数の和:921

約数の個数: 24

約数和(自身を含む): 51710400

約数和(自身を除く): 23069588

約数列:

[1, 2, 4, 37, 74, 148, 431, 449, 862, 898, 1724, 1796, 15947, 16613, 31894, 33226, 63788, 66452, 193519, 387038, 774076, 7160203, 14320406, 28640812]

約数ペア:

[(1, 28640812), (2, 14320406), (4, 7160203), (37, 774076), (74, 387038), (148, 193519), (431, 66452), (449, 63788), (862, 33226), (898, 31894), (1724, 16613), (1796, 15947)]