172389465

素因数分解:

$3^4\times 5^1\times {\mathrm{425653}}^1$

素因数の和:425670

約数の個数: 20

約数和(自身を含む): 309024804

約数和(自身を除く): 136635339

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 425653, 1276959, 2128265, 3830877, 6384795, 11492631, 19154385, 34477893, 57463155, 172389465]

約数ペア:

[(1, 172389465), (3, 57463155), (5, 34477893), (9, 19154385), (15, 11492631), (27, 6384795), (45, 3830877), (81, 2128265), (135, 1276959), (405, 425653)]