920385

素因数分解:

$3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:305

約数の個数: 24

約数和(自身を含む): 1618344

約数和(自身を除く): 697959

約数列:

[1, 3, 5, 9, 15, 45, 113, 181, 339, 543, 565, 905, 1017, 1629, 1695, 2715, 5085, 8145, 20453, 61359, 102265, 184077, 306795, 920385]

約数ペア:

[(1, 920385), (3, 306795), (5, 184077), (9, 102265), (15, 61359), (45, 20453), (113, 8145), (181, 5085), (339, 2715), (543, 1695), (565, 1629), (905, 1017)]