156979235

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{4001}}^1$

素因数の和:4091

約数の個数: 32

約数和(自身を含む): 230515200

約数和(自身を除く): 73535965

約数列:

[1, 5, 7, 19, 35, 59, 95, 133, 295, 413, 665, 1121, 2065, 4001, 5605, 7847, 20005, 28007, 39235, 76019, 140035, 236059, 380095, 532133, 1180295, 1652413, 2660665, 4485121, 8262065, 22425605, 31395847, 156979235]

約数ペア:

[(1, 156979235), (5, 31395847), (7, 22425605), (19, 8262065), (35, 4485121), (59, 2660665), (95, 1652413), (133, 1180295), (295, 532133), (413, 380095), (665, 236059), (1121, 140035), (2065, 76019), (4001, 39235), (5605, 28007), (7847, 20005)]