20746125

素因数分解:

$3^5\times 5^3\times {\mathrm{683}}^1$

素因数の和:713

約数の個数: 48

約数和(自身を含む): 38840256

約数和(自身を除く): 18094131

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 225, 243, 375, 405, 675, 683, 1125, 1215, 2025, 2049, 3375, 3415, 6075, 6147, 10125, 10245, 17075, 18441, 30375, 30735, 51225, 55323, 85375, 92205, 153675, 165969, 256125, 276615, 461025, 768375, 829845, 1383075, 2305125, 4149225, 6915375, 20746125]

約数ペア:

[(1, 20746125), (3, 6915375), (5, 4149225), (9, 2305125), (15, 1383075), (25, 829845), (27, 768375), (45, 461025), (75, 276615), (81, 256125), (125, 165969), (135, 153675), (225, 92205), (243, 85375), (375, 55323), (405, 51225), (675, 30735), (683, 30375), (1125, 18441), (1215, 17075), (2025, 10245), (2049, 10125), (3375, 6147), (3415, 6075)]