18001225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{977}}^1$

素因数の和:1065

約数の個数: 24

約数和(自身を含む): 24739488

約数和(自身を除く): 6738263

約数列:

[1, 5, 11, 25, 55, 67, 275, 335, 737, 977, 1675, 3685, 4885, 10747, 18425, 24425, 53735, 65459, 268675, 327295, 720049, 1636475, 3600245, 18001225]

約数ペア:

[(1, 18001225), (5, 3600245), (11, 1636475), (25, 720049), (55, 327295), (67, 268675), (275, 65459), (335, 53735), (737, 24425), (977, 18425), (1675, 10747), (3685, 4885)]