28637780

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{4517}}^1$

素因数の和:4843

約数の個数: 24

約数和(自身を含む): 60342408

約数和(自身を除く): 31704628

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 1268, 1585, 3170, 4517, 6340, 9034, 18068, 22585, 45170, 90340, 1431889, 2863778, 5727556, 7159445, 14318890, 28637780]

約数ペア:

[(1, 28637780), (2, 14318890), (4, 7159445), (5, 5727556), (10, 2863778), (20, 1431889), (317, 90340), (634, 45170), (1268, 22585), (1585, 18068), (3170, 9034), (4517, 6340)]