128538225

素因数分解:

$3^3\times 5^2\times {\mathrm{191}}^1\times {\mathrm{997}}^1$

素因数の和:1207

約数の個数: 48

約数和(自身を含む): 237603840

約数和(自身を除く): 109065615

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 191, 225, 573, 675, 955, 997, 1719, 2865, 2991, 4775, 4985, 5157, 8595, 8973, 14325, 14955, 24925, 25785, 26919, 42975, 44865, 74775, 128925, 134595, 190427, 224325, 571281, 672975, 952135, 1713843, 2856405, 4760675, 5141529, 8569215, 14282025, 25707645, 42846075, 128538225]

約数ペア:

[(1, 128538225), (3, 42846075), (5, 25707645), (9, 14282025), (15, 8569215), (25, 5141529), (27, 4760675), (45, 2856405), (75, 1713843), (135, 952135), (191, 672975), (225, 571281), (573, 224325), (675, 190427), (955, 134595), (997, 128925), (1719, 74775), (2865, 44865), (2991, 42975), (4775, 26919), (4985, 25785), (5157, 24925), (8595, 14955), (8973, 14325)]