6400215

素因数分解:

$3^4\times 5^1\times {\mathrm{15803}}^1$

素因数の和:15820

約数の個数: 20

約数和(自身を含む): 11473704

約数和(自身を除く): 5073489

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 15803, 47409, 79015, 142227, 237045, 426681, 711135, 1280043, 2133405, 6400215]

約数ペア:

[(1, 6400215), (3, 2133405), (5, 1280043), (9, 711135), (15, 426681), (27, 237045), (45, 142227), (81, 79015), (135, 47409), (405, 15803)]