1247994945

素因数分解:

$3^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{20681}}^1$

素因数の和:20847

約数の個数: 40

約数和(自身を含む): 2252269800

約数和(自身を除く): 1004274855

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 149, 405, 447, 745, 1341, 2235, 4023, 6705, 12069, 20115, 20681, 60345, 62043, 103405, 186129, 310215, 558387, 930645, 1675161, 2791935, 3081469, 8375805, 9244407, 15407345, 27733221, 46222035, 83199663, 138666105, 249598989, 415998315, 1247994945]

約数ペア:

[(1, 1247994945), (3, 415998315), (5, 249598989), (9, 138666105), (15, 83199663), (27, 46222035), (45, 27733221), (81, 15407345), (135, 9244407), (149, 8375805), (405, 3081469), (447, 2791935), (745, 1675161), (1341, 930645), (2235, 558387), (4023, 310215), (6705, 186129), (12069, 103405), (20115, 62043), (20681, 60345)]