256445515

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{401}}^1$

素因数の和:579

約数の個数: 32

約数和(自身を含む): 330656256

約数和(自身を除く): 74210741

約数列:

[1, 5, 23, 67, 83, 115, 335, 401, 415, 1541, 1909, 2005, 5561, 7705, 9223, 9545, 26867, 27805, 33283, 46115, 127903, 134335, 166415, 617941, 639515, 765509, 2229961, 3089705, 3827545, 11149805, 51289103, 256445515]

約数ペア:

[(1, 256445515), (5, 51289103), (23, 11149805), (67, 3827545), (83, 3089705), (115, 2229961), (335, 765509), (401, 639515), (415, 617941), (1541, 166415), (1909, 134335), (2005, 127903), (5561, 46115), (7705, 33283), (9223, 27805), (9545, 26867)]