28758465

素因数分解:

$3^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{997}}^1$

素因数の和:1649

約数の個数: 24

約数和(自身を含む): 49975848

約数和(自身を除く): 21217383

約数列:

[1, 3, 5, 9, 15, 45, 641, 997, 1923, 2991, 3205, 4985, 5769, 8973, 9615, 14955, 28845, 44865, 639077, 1917231, 3195385, 5751693, 9586155, 28758465]

約数ペア:

[(1, 28758465), (3, 9586155), (5, 5751693), (9, 3195385), (15, 1917231), (45, 639077), (641, 44865), (997, 28845), (1923, 14955), (2991, 9615), (3205, 8973), (4985, 5769)]