28788515

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43291}}^1$

素因数の和:43322

約数の個数: 16

約数和(自身を含む): 41560320

約数和(自身を除く): 12771805

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 43291, 216455, 303037, 822529, 1515185, 4112645, 5757703, 28788515]

約数ペア:

[(1, 28788515), (5, 5757703), (7, 4112645), (19, 1515185), (35, 822529), (95, 303037), (133, 216455), (665, 43291)]