28380015

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1747}}^1$

素因数の和:1796

約数の個数: 36

約数和(自身を含む): 51947064

約数和(自身を除く): 23567049

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 361, 855, 1083, 1747, 1805, 3249, 5241, 5415, 8735, 15723, 16245, 26205, 33193, 78615, 99579, 165965, 298737, 497895, 630667, 1493685, 1892001, 3153335, 5676003, 9460005, 28380015]

約数ペア:

[(1, 28380015), (3, 9460005), (5, 5676003), (9, 3153335), (15, 1892001), (19, 1493685), (45, 630667), (57, 497895), (95, 298737), (171, 165965), (285, 99579), (361, 78615), (855, 33193), (1083, 26205), (1747, 16245), (1805, 15723), (3249, 8735), (5241, 5415)]