2578679955

素因数分解:

$3^4\times 5^1\times {\mathrm{6367111}}^1$

素因数の和:6367128

約数の個数: 20

約数和(自身を含む): 4622523312

約数和(自身を除く): 2043843357

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 6367111, 19101333, 31835555, 57303999, 95506665, 171911997, 286519995, 515735991, 859559985, 2578679955]

約数ペア:

[(1, 2578679955), (3, 859559985), (5, 515735991), (9, 286519995), (15, 171911997), (27, 95506665), (45, 57303999), (81, 31835555), (135, 19101333), (405, 6367111)]