28758890

素因数分解:

$2^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{6551}}^1$

素因数の和:6997

約数の個数: 16

約数和(自身を含む): 51891840

約数和(自身を除く): 23132950

約数列:

[1, 2, 5, 10, 439, 878, 2195, 4390, 6551, 13102, 32755, 65510, 2875889, 5751778, 14379445, 28758890]

約数ペア:

[(1, 28758890), (2, 14379445), (5, 5751778), (10, 2875889), (439, 65510), (878, 32755), (2195, 13102), (4390, 6551)]