20145105

素因数分解:

$3^4\times 5^1\times {\mathrm{49741}}^1$

素因数の和:49758

約数の個数: 20

約数和(自身を含む): 36112692

約数和(自身を除く): 15967587

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 49741, 149223, 248705, 447669, 746115, 1343007, 2238345, 4029021, 6715035, 20145105]

約数ペア:

[(1, 20145105), (3, 6715035), (5, 4029021), (9, 2238345), (15, 1343007), (27, 746115), (45, 447669), (81, 248705), (135, 149223), (405, 49741)]