25644980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{16231}}^1$

素因数の和:16319

約数の個数: 24

約数和(自身を含む): 54539520

約数和(自身を除く): 28894540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 16231, 32462, 64924, 81155, 162310, 324620, 1282249, 2564498, 5128996, 6411245, 12822490, 25644980]

約数ペア:

[(1, 25644980), (2, 12822490), (4, 6411245), (5, 5128996), (10, 2564498), (20, 1282249), (79, 324620), (158, 162310), (316, 81155), (395, 64924), (790, 32462), (1580, 16231)]