1215205915

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{67157}}^1$

素因数の和:67227

約数の個数: 32

約数和(自身を含む): 1856784384

約数和(自身を除く): 641578469

約数列:

[1, 5, 7, 11, 35, 47, 55, 77, 235, 329, 385, 517, 1645, 2585, 3619, 18095, 67157, 335785, 470099, 738727, 2350495, 3156379, 3693635, 5171089, 15781895, 22094653, 25855445, 34720169, 110473265, 173600845, 243041183, 1215205915]

約数ペア:

[(1, 1215205915), (5, 243041183), (7, 173600845), (11, 110473265), (35, 34720169), (47, 25855445), (55, 22094653), (77, 15781895), (235, 5171089), (329, 3693635), (385, 3156379), (517, 2350495), (1645, 738727), (2585, 470099), (3619, 335785), (18095, 67157)]