28902015

素因数分解:

$3^4\times 5^1\times {\mathrm{71363}}^1$

素因数の和:71380

約数の個数: 20

約数和(自身を含む): 51810264

約数和(自身を除く): 22908249

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 71363, 214089, 356815, 642267, 1070445, 1926801, 3211335, 5780403, 9634005, 28902015]

約数ペア:

[(1, 28902015), (3, 9634005), (5, 5780403), (9, 3211335), (15, 1926801), (27, 1070445), (45, 642267), (81, 356815), (135, 214089), (405, 71363)]