12843145

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:158

約数の個数: 48

約数和(自身を含む): 19699200

約数和(自身を除く): 6856055

約数列:

[1, 5, 7, 19, 31, 35, 49, 89, 95, 133, 155, 217, 245, 445, 589, 623, 665, 931, 1085, 1519, 1691, 2759, 2945, 3115, 4123, 4361, 4655, 7595, 8455, 11837, 13795, 19313, 20615, 21805, 28861, 52421, 59185, 82859, 96565, 135191, 144305, 262105, 366947, 414295, 675955, 1834735, 2568629, 12843145]

約数ペア:

[(1, 12843145), (5, 2568629), (7, 1834735), (19, 675955), (31, 414295), (35, 366947), (49, 262105), (89, 144305), (95, 135191), (133, 96565), (155, 82859), (217, 59185), (245, 52421), (445, 28861), (589, 21805), (623, 20615), (665, 19313), (931, 13795), (1085, 11837), (1519, 8455), (1691, 7595), (2759, 4655), (2945, 4361), (3115, 4123)]