1281225

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{1553}}^1$

素因数の和:1577

約数の個数: 24

約数和(自身を含む): 2312352

約数和(自身を除く): 1031127

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 275, 825, 1553, 4659, 7765, 17083, 23295, 38825, 51249, 85415, 116475, 256245, 427075, 1281225]

約数ペア:

[(1, 1281225), (3, 427075), (5, 256245), (11, 116475), (15, 85415), (25, 51249), (33, 38825), (55, 23295), (75, 17083), (165, 7765), (275, 4659), (825, 1553)]