78218865

素因数分解:

$3^4\times 5^1\times {\mathrm{193133}}^1$

素因数の和:193150

約数の個数: 20

約数和(自身を含む): 140215284

約数和(自身を除く): 61996419

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 193133, 579399, 965665, 1738197, 2896995, 5214591, 8690985, 15643773, 26072955, 78218865]

約数ペア:

[(1, 78218865), (3, 26072955), (5, 15643773), (9, 8690985), (15, 5214591), (27, 2896995), (45, 1738197), (81, 965665), (135, 579399), (405, 193133)]