1645515

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1$

素因数の和:273

約数の個数: 40

約数和(自身を含む): 3136320

約数和(自身を除く): 1490805

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 239, 255, 405, 459, 717, 765, 1195, 1377, 2151, 2295, 3585, 4063, 6453, 6885, 10755, 12189, 19359, 20315, 32265, 36567, 60945, 96795, 109701, 182835, 329103, 548505, 1645515]

約数ペア:

[(1, 1645515), (3, 548505), (5, 329103), (9, 182835), (15, 109701), (17, 96795), (27, 60945), (45, 36567), (51, 32265), (81, 20315), (85, 19359), (135, 12189), (153, 10755), (239, 6885), (255, 6453), (405, 4063), (459, 3585), (717, 2295), (765, 2151), (1195, 1377)]