28103780

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{26513}}^1$

素因数の和:26575

約数の個数: 24

約数和(自身を含む): 60133752

約数和(自身を除く): 32029972

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 26513, 53026, 106052, 132565, 265130, 530260, 1405189, 2810378, 5620756, 7025945, 14051890, 28103780]

約数ペア:

[(1, 28103780), (2, 14051890), (4, 7025945), (5, 5620756), (10, 2810378), (20, 1405189), (53, 530260), (106, 265130), (212, 132565), (265, 106052), (530, 53026), (1060, 26513)]