2045137005

素因数分解:

$3^4\times 5^1\times {\mathrm{5049721}}^1$

素因数の和:5049738

約数の個数: 20

約数和(自身を含む): 3666098172

約数和(自身を除く): 1620961167

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 5049721, 15149163, 25248605, 45447489, 75745815, 136342467, 227237445, 409027401, 681712335, 2045137005]

約数ペア:

[(1, 2045137005), (3, 681712335), (5, 409027401), (9, 227237445), (15, 136342467), (27, 75745815), (45, 45447489), (81, 25248605), (135, 15149163), (405, 5049721)]