28015715

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{919}}^1$

素因数の和:1011

約数の個数: 32

約数和(自身を含む): 42040320

約数和(自身を除く): 14024605

約数列:

[1, 5, 7, 13, 35, 65, 67, 91, 335, 455, 469, 871, 919, 2345, 4355, 4595, 6097, 6433, 11947, 30485, 32165, 59735, 61573, 83629, 307865, 418145, 431011, 800449, 2155055, 4002245, 5603143, 28015715]

約数ペア:

[(1, 28015715), (5, 5603143), (7, 4002245), (13, 2155055), (35, 800449), (65, 431011), (67, 418145), (91, 307865), (335, 83629), (455, 61573), (469, 59735), (871, 32165), (919, 30485), (2345, 11947), (4355, 6433), (4595, 6097)]