1320705

素因数分解:

$3^5\times 5^1\times {\mathrm{1087}}^1$

素因数の和:1107

約数の個数: 24

約数和(自身を含む): 2376192

約数和(自身を除く): 1055487

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1087, 1215, 3261, 5435, 9783, 16305, 29349, 48915, 88047, 146745, 264141, 440235, 1320705]

約数ペア:

[(1, 1320705), (3, 440235), (5, 264141), (9, 146745), (15, 88047), (27, 48915), (45, 29349), (81, 16305), (135, 9783), (243, 5435), (405, 3261), (1087, 1215)]