28231880

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{3943}}^1$

素因数の和:4133

約数の個数: 32

約数和(自身を含む): 63892800

約数和(自身を除く): 35660920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 3580, 3943, 7160, 7886, 15772, 19715, 31544, 39430, 78860, 157720, 705797, 1411594, 2823188, 3528985, 5646376, 7057970, 14115940, 28231880]

約数ペア:

[(1, 28231880), (2, 14115940), (4, 7057970), (5, 5646376), (8, 3528985), (10, 2823188), (20, 1411594), (40, 705797), (179, 157720), (358, 78860), (716, 39430), (895, 31544), (1432, 19715), (1790, 15772), (3580, 7886), (3943, 7160)]