863865

素因数分解:

$3^7\times 5^1\times {\mathrm{79}}^1$

素因数の和:105

約数の個数: 32

約数和(自身を含む): 1574400

約数和(自身を除く): 710535

約数列:

[1, 3, 5, 9, 15, 27, 45, 79, 81, 135, 237, 243, 395, 405, 711, 729, 1185, 1215, 2133, 2187, 3555, 3645, 6399, 10665, 10935, 19197, 31995, 57591, 95985, 172773, 287955, 863865]

約数ペア:

[(1, 863865), (3, 287955), (5, 172773), (9, 95985), (15, 57591), (27, 31995), (45, 19197), (79, 10935), (81, 10665), (135, 6399), (237, 3645), (243, 3555), (395, 2187), (405, 2133), (711, 1215), (729, 1185)]