89902015

素因数分解:

$5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:165

約数の個数: 64

約数和(自身を含む): 138240000

約数和(自身を除く): 48337985

約数列:

[1, 5, 7, 19, 31, 35, 49, 89, 95, 133, 155, 217, 245, 343, 445, 589, 623, 665, 931, 1085, 1519, 1691, 1715, 2759, 2945, 3115, 4123, 4361, 4655, 6517, 7595, 8455, 10633, 11837, 13795, 19313, 20615, 21805, 28861, 30527, 32585, 52421, 53165, 59185, 82859, 96565, 135191, 144305, 152635, 202027, 262105, 366947, 414295, 580013, 675955, 946337, 1010135, 1834735, 2568629, 2900065, 4731685, 12843145, 17980403, 89902015]

約数ペア:

[(1, 89902015), (5, 17980403), (7, 12843145), (19, 4731685), (31, 2900065), (35, 2568629), (49, 1834735), (89, 1010135), (95, 946337), (133, 675955), (155, 580013), (217, 414295), (245, 366947), (343, 262105), (445, 202027), (589, 152635), (623, 144305), (665, 135191), (931, 96565), (1085, 82859), (1519, 59185), (1691, 53165), (1715, 52421), (2759, 32585), (2945, 30527), (3115, 28861), (4123, 21805), (4361, 20615), (4655, 19313), (6517, 13795), (7595, 11837), (8455, 10633)]