28440315

素因数分解:

$3^4\times 5^1\times {\mathrm{70223}}^1$

素因数の和:70240

約数の個数: 20

約数和(自身を含む): 50982624

約数和(自身を除く): 22542309

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 70223, 210669, 351115, 632007, 1053345, 1896021, 3160035, 5688063, 9480105, 28440315]

約数ペア:

[(1, 28440315), (3, 9480105), (5, 5688063), (9, 3160035), (15, 1896021), (27, 1053345), (45, 632007), (81, 351115), (135, 210669), (405, 70223)]