28011015

素因数分解:

$3^4\times 5^1\times {\mathrm{69163}}^1$

素因数の和:69180

約数の個数: 20

約数和(自身を含む): 50213064

約数和(自身を除く): 22202049

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 69163, 207489, 345815, 622467, 1037445, 1867401, 3112335, 5602203, 9337005, 28011015]

約数ペア:

[(1, 28011015), (3, 9337005), (5, 5602203), (9, 3112335), (15, 1867401), (27, 1037445), (45, 622467), (81, 345815), (135, 207489), (405, 69163)]