389675205

素因数分解:

$3^4\times 5^1\times {\mathrm{962161}}^1$

素因数の和:962178

約数の個数: 20

約数和(自身を含む): 698529612

約数和(自身を除く): 308854407

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 962161, 2886483, 4810805, 8659449, 14432415, 25978347, 43297245, 77935041, 129891735, 389675205]

約数ペア:

[(1, 389675205), (3, 129891735), (5, 77935041), (9, 43297245), (15, 25978347), (27, 14432415), (45, 8659449), (81, 4810805), (135, 2886483), (405, 962161)]