257003685

素因数分解:

$3^4\times 5^1\times {\mathrm{634577}}^1$

素因数の和:634594

約数の個数: 20

約数和(自身を含む): 460703628

約数和(自身を除く): 203699943

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 634577, 1903731, 3172885, 5711193, 9518655, 17133579, 28555965, 51400737, 85667895, 257003685]

約数ペア:

[(1, 257003685), (3, 85667895), (5, 51400737), (9, 28555965), (15, 17133579), (27, 9518655), (45, 5711193), (81, 3172885), (135, 1903731), (405, 634577)]