19870125

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{4817}}^1$

素因数の和:4846

約数の個数: 32

約数和(自身を含む): 36077184

約数和(自身を除く): 16207059

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 125, 165, 275, 375, 825, 1375, 4125, 4817, 14451, 24085, 52987, 72255, 120425, 158961, 264935, 361275, 602125, 794805, 1324675, 1806375, 3974025, 6623375, 19870125]

約数ペア:

[(1, 19870125), (3, 6623375), (5, 3974025), (11, 1806375), (15, 1324675), (25, 794805), (33, 602125), (55, 361275), (75, 264935), (125, 158961), (165, 120425), (275, 72255), (375, 52987), (825, 24085), (1375, 14451), (4125, 4817)]